NOTE:  This is important.  All Americans need to understand that impeachment is a political process and not one of statutory law.

"Why the founders let Congress define impeachment-worthy crimes" PBS NewsHour 10/15/2019

Excerpt

SUMMARY:  The power to impeach a federal official such as the President has been exercised rarely in American history, and U.S. Constitution mentions the word only a handful of times.  What were the Founders thinking when they included that power, and how have public views of these powers evolved over time?  Judy Woodruff looks back with presidential historian Michael Beschloss.