Early on March 18, former President Donald J. Trump hit ship on a social media publish saying he can be “arrested on Tuesday of subsequent week.”

“Protest,” he wrote on his Fact Social web site. “Take our nation again!”

Mr. Trump’s prediction was based mostly on media stories, in keeping with his legal professionals, and his timing was off by two weeks.

But the assertion set in movement occasions that profoundly altered the course of the Republican nominating contest. Donors despatched checks. Fox Information modified its tune. The get together equipment rushed to defend Mr. Trump. And the polls went up — and up.

These sequence of falling dominoes — name it the Indictment impact — will be measured in ways in which reveal a lot concerning the state of the Republican Occasion. To look at the phenomenon, The New York Instances reviewed nationwide and early state polls, interviewed Republican major voters, examined federal marketing campaign finance information, analyzed a whole bunch of get together emails, scrutinized the shifts in conservative media protection and talked to operatives contained in the campaigns of Mr. Trump’s rivals.

The evaluation highlights Mr. Trump’s dominance over the get together, revealing the years of conditioning of thousands and thousands of Republican voters who view Mr. Trump’s authorized troubles as a proxy assault on them. And it shows an upside-down actuality the place felony fees act as political property — at the least for the aim of successful the Republican nomination.

“The rally across the flag will not be a brand new phenomenon in American politics, however Donald Trump has definitely taken it to a brand new degree,” mentioned Tony Fabrizio, a Republican pollster who works for Mr. Trump’s tremendous PAC. “With Trump the rally across the flag occurs to be about him personally.”

‘A Photo voltaic Eclipse-like Occasion’

For practically two years, Fox Information and Rupert Murdoch’s broader empire had been weaning itself off Mr. Trump and elevating Gov. Ron DeSantis of Florida. As a New York Publish headline celebrating his 20-point re-election win put it, Mr. DeSantis was “DeFUTURE” of the Republican Occasion.

Mr. DeSantis’s workplace intently coordinated with Fox producers to create flattering segments, in keeping with emails obtained by The Tampa Bay Instances. His achievements in Florida — particularly his dealing with of Covid — had been heralded as heroic acts of governance within the face of leftist opposition. Fox programming centered on themes and villains that Mr. DeSantis had constructed his model on combating: transgender athletes, Dr. Anthony Fauci and all issues “woke.”

However after Mr. Trump’s first indictment, the priorities of the conservative motion and its media ecosystem shifted.

Influential conservative speak radio hosts rallied behind Mr. Trump. Even commentators who preferred Mr. DeSantis, akin to Mark Levin, took on the indictments as a private mission that appeared to override different priorities. One other right-wing character, Glenn Beck, who used to warn concerning the risks of Mr. Trump, went on Tucker Carlson’s now-canceled present on Fox, placed on a MAGA hat and declared that “the America that we knew, the basic transformation that began in 2008, is completed.”

Programming throughout conservative media centered on the concept that Mr. Trump was the sufferer of a justice system hijacked by Democrats. Mr. DeSantis’s struggle in opposition to “wokeness” turned passé — a matter of small stakes when set in opposition to Mr. Trump’s potential incarceration.

Mr. Trump’s indictments didn’t simply occupy a 24-hour information cycle; the circumstances consumed entire weeks on each mainstream and conservative media, every following a sample. There was the week of rumors forward of the indictments, after which indictment day, arraignment day and the post-arraignment evaluation.

Mr. Trump and his group have intentionally sought to maximise reside information protection of his felony arraignments. They deal with court docket appearances precisely as they might marketing campaign occasions — choreographing visuals all the way down to minute particulars and dealing with all of the networks, together with these Mr. Trump has pilloried as “pretend information,” akin to CNN.

The Trump group has invited reporters into its motorcade, whose black S.U.V.s have been tracked reside on tv information. The marketing campaign has briefed the networks forward of time in order that cameras will be arrange at a number of places on arraignment days to get the very best pictures — together with alongside the motorcade route and because the Trump airplane lands and takes off.

“What did the opposite candidates do at the moment? Do we all know? We all know the place Trump was,” Steven Cheung, Mr. Trump’s spokesman, mentioned the night of the Florida arraignment. “There’s no oxygen for the opposite candidates.”

For the latest arraignment in Washington, the Trump group ensured a digicam was stationed throughout the motorcade — taking pictures out of the windshield to provide community audiences a ride-along impact as the previous president was pushed from the courthouse to Reagan Nationwide Airport. On arraignment days, Trump advisers had been thrilled as each information display fastened on the previous president — with some aides posting images of the wall-to-wall protection on social media.

It shortly turned obvious to Mr. DeSantis and different rivals that throughout the indictment fever they might be responding to the information on Mr. Trump’s phrases.

An adviser to one among Mr. Trump’s rivals, who was not approved to talk publicly, mentioned Mr. Trump’s authorized travails had repeatedly compelled his candidate’s marketing campaign to reschedule coverage bulletins and redo its calendar, describing the indictments as “a photo voltaic eclipse-like occasion.”

Commanding the Occasion Equipment

It wasn’t simply Mr. Trump’s rivals and his acolytes on Capitol Hill who snapped to consideration after his felony fees — it was all the official construction of the Republican Occasion.

Earlier than Mr. Trump introduced his 2024 candidacy, the official get together committees had routinely spammed voters with Trump-centric fund-raising emails. Simply the point out of his identify in a topic line drew consideration, they usually had change into depending on him to goose small-dollar donations.

However when Mr. Trump introduced he was operating for president on Nov. 15, prime officers on the Republican Nationwide Committee knew they wanted to cease pumping out the Trump emails. They wished to keep away from giving the looks that they had been enjoying favorites within the G.O.P. major and subsequently danger compromising their official neutrality. An evaluation of the previous 10 months of fund-raising emails from a web-based archive exhibits that between Mr. Trump’s announcement on Nov. 15 and late March the R.N.C. despatched just one electronic mail that talked about Mr. Trump in its topic line.

However on March 29, when rumors had been swirling that the previous president would quickly be indicted in Manhattan, the R.N.C. ended its moratorium.

Over the following week alone, the R.N.C. despatched at the least a dozen emails to Republican voters expressing outrage over the indictment of Mr. Trump — and channeling that anger into requests for private knowledge and donations. Shortly after midnight, within the early hours of April 4, the R.N.C. emailed its listing an enormous digital countdown clock to “President Trump arrest” — displaying hours, minutes and seconds.

R.N.C. emails included polls asking folks to vote on whether or not Mr. Trump was harmless or responsible. And the get together despatched out a message from its chairwoman, Ronna McDaniel, with the topic line “Darkish instances for America” — urging folks to donate cash to “stand with the Republican Occasion at this crucial second in our nation’s historical past.”

Ms. McDaniel has appeared ceaselessly on Fox to defend the previous president. So have two Home leaders, Representatives Kevin McCarthy and Elise Stefanik, who’ve at instances appeared to compete to see who can defend Mr. Trump extra vigorously.

The Nationwide Republican Senatorial Committee, the get together’s marketing campaign arm for the Senate, adopted the identical playbook because the R.N.C. And whereas these ways had been self-interested — on-line fund-raisers trip no matter dominates the information cycle, and nothing sells like Mr. Trump’s indictments — the messages of assist from the official get together equipment additionally despatched a transparent sign. This was Mr. Trump’s get together. Not defending him was not an possibility.

An On-line Gold Mine

The previous president had been struggling to boost marketing campaign money till it turned clear, in mid-March, that he would face felony fees in Manhattan.

That first indictment poured rocket gas into Mr. Trump’s on-line fund-raising machine. Mr. Trump had been averaging $129,000 raised per day in 2023 till that time, in keeping with federal information. Within the subsequent three weeks he averaged greater than $778,000 per day.

Put one other manner: Mr. Trump had raised a bit over $12 million within the first 88 days of the 12 months. It took him simply seven days after his first indictment to boost an analogous quantity — $13 million.

His second indictment introduced diminishing monetary returns, and no public information can be found that cowl his third. However Mr. Trump’s on-line fund-raising has been meaningfully strengthened by his felony fees. A shocking 40 % of each greenback Mr. Trump raised on-line within the first six months of this 12 months was collected within the two one-week intervals round his first indictments.

Whereas Mr. Trump’s aides have boasted concerning the indictments’ results on their fund-raising, they’re additionally keenly conscious that the previous president’s authorized issues haven’t been web worthwhile. The PAC that pays the authorized payments is nearly broke. The marketing campaign account has not funded his authorized bills.

Whatever the total steadiness sheet, the sudden surge in on-line fund-raising was a number one indicator of the Republican citizens’s fervor for Mr. Trump and its reflexive impulse to defend him. Mr. Trump’s advisers are conscious the indictments could also be much less useful to him politically in a common election than in a major. However for now, they see the felony fees as serving to him in opposition to different Republicans.

‘Making my Assist Even Stronger’

Mr. Trump gained substantial assist in major polling round his indictment within the spring — growing about 9 share factors in polling averages within the weeks following his announcement on Fact Social that he anticipated to be arrested.

“The indictments are truthfully making my assist even stronger,” mentioned Sheri Hardy Candeni, a 51-year-old Trump supporter from California, Kentucky. “They’ve weaponized our total authorities in opposition to folks like us. Each time he will get indicted, it’s driving tens of hundreds extra of us to the polls.”

Greater than half of Republicans — together with 77 % of self-identified MAGA Republicans — mentioned the indictments and investigations in opposition to Mr. Trump had been an assault on folks like them, in keeping with a CBS Information/YouGov ballot taken quickly after the latest indictment. And 86 % of Republicans felt the indictments had been an try and cease Mr. Trump from campaigning.

For some Republicans, the mere proven fact that Democrats had been investigating and charging Mr. Trump with crimes was added motive to assist him. And the truth that Mr. Trump’s rivals haven’t been indicted was a explanation for suspicion.

“Any time you have got a pack of canine chasing you down and also you’re prepared to face agency and struggle, you’re going to get my vote,” mentioned Mallory Butler, 39, who lives in Polk County, Fla., and helps Mr. Trump. “DeSantis doesn’t have a pack of canine looking him down, and that tells me that anyone’s most likely backing him, or he’s in anyone’s pocket at this level. And Trump doesn’t have that.”

Mr. DeSantis’s advisers have gone backwards and forwards over find out how to defend Mr. Trump sufficient to fulfill the Republican base however not a lot as to render him a supplicant. There have been sharp inner debates amongst Mr. DeSantis’s senior workers about whether or not the governor ought to promise to pardon Mr. Trump if he had been elected as president.

Mr. DeSantis initially refused to go that far — solely saying that he would take into account a pardon. However extra lately he has strongly hinted that he would. And due to the extreme Republican anger round Mr. Trump’s first indictment, the DeSantis group fast-tracked the rollout of its coverage to confront a “weaponized” Justice Division, in keeping with an individual near the marketing campaign.

Mr. DeSantis’s communications director, Andrew Romeo, responded that the Florida governor was “the one candidate on this race who can beat Joe Biden and finish the weaponization of the federal authorities as soon as and for all.”

And Mr. Cheung, Mr. Trump’s communications director, described the indictments as a “battle between good and evil.” He accused Mr. DeSantis of taking “the cowardly path” and predicted voters would “not overlook his disloyalty.”

Mr. Trump’s rise within the polls may very well be tied to a number of dynamics past his indictments. The preliminary spike in assist predated his first indictment, and the polling will increase coincided with a spate of adverse headlines and stumbles from Mr. DeSantis.

Mr. Trump’s second indictment led to a a lot smaller polling bump, and it stays too early to estimate the polling impact of his third and most up-to-date indictment.

For a lot of of Mr. Trump’s supporters, the main points of every successive indictment have blended collectively right into a generic assault on the previous president, creating one thing of a background noise they’re largely tuning out.

“The indictments don’t have any impression on my assist for Trump,” mentioned Sean Roh, 39, who described himself as a reluctant Trump supporter from Linwood, Wash. “Up to now I’d adopted them within the information, however now I don’t care to learn the main points.”

Seven in 10 Republican major voters mentioned Republicans wanted to face behind Mr. Trump within the face of investigations, together with practically half of voters who’re planning to assist a candidate apart from the previous president, in keeping with the newest New York Instances/Siena Faculty ballot, which was taken earlier than the latest indictment. And greater than 80 % of Republicans mentioned the fees in the latest indictment had been politically motivated, in keeping with an ABC Information/Ipsos ballot.

The indictment cycle might start anew as quickly as this week, when Mr. Trump might face a fourth indictment in Georgia.

On the morning of his most up-to-date arraignment, the previous president joked about what it will take for him to safe victory.

“I want,” he mentioned, “yet one more indictment to make sure my election!”

Ashley Wu, Camille Baker, Karen Yourish and Kennedy Elliott contributed reporting.