First, I am not a Democrat nor Republican. The Democrats have a real dilemma here. Trump is a really talented con-man and can use any push to impeach him as a rallying cry for re-election. The Democrats would have to provide prof-positive reason to impeach Trump.
Their best bet is to present a presidential team in 2020 that can overcome Trump's talent as a salesman who is selling himself. Then convince the majority of voters that they need to vote Democrat if they want Trump out of office. They cannot afford to have what happened in 2016 where Bernie supporters did not vote because he was not on the ticket.
"Why Pelosi is trying to slow Democrats’ impeachment momentum" PBS NewsHour 4/22/2019
SUMMARY: Although Congress is currently on spring break, there continues to be plenty of political activity in the wake of the release of a redacted version of the Mueller report. House Speaker Nancy Pelosi circled Democrats in a conference call Monday, to survey their opinions about how to react and potentially head off momentum around impeachment. Judy Woodruff talks to Lisa Desjardins.
"What 2020 Democrats are saying about impeachment" PBS NewsHour 4/22/2019
SUMMARY: The 2020 Democrats were on the campaign trail over the weekend, unveiling new policies and positions. Though Sen. Elizabeth Warren of Massachusetts was the only contender to call for impeaching President Trump, Pete Buttigieg agreed that Trump “deserves to be impeached." Meanwhile, Rep. Seth Moulton entered the race, and former Vice President Joe Biden is expected to. Yamiche Alcindor reports.
"On impeachment, Democrats weigh principle against popularity" PBS NewsHour 4/23/2019
SUMMARY: Democrats in the House and on the 2020 campaign trail are divided on whether to initiate impeachment proceedings against President Trump. While many feel his actions warrant impeachment, there is concern that public sentiment wouldn't support it. But Rep. Jared Huffman (D-Calif.) thinks refraining from impeachment would violate a fundamental responsibility of Congress, as he tells Judy Woodruff.