Grb, Let me be more specific re every president since Eisenhower:
* Eisenhower: military hero. No move to impeach.
* Kennedy: held the job only 3 years. No move to impeach.
* Johnson: started strong but then was dragged down by the Vietnam War. Protesters in the streets and a disrupted convention. He chose to not run again. Despite controversies, no move to impeach.
* Nixon. Huge margin of victory for his reelection. He then self imploded due to Watergate break in and coverup. There was a move to impeach. He avoided that disgrace by resigning. First president to leave office voluntarily.
* Ford: no move to impeach.
* Carter. Well liked but not well respected. No move to impeach.
* Reagan: Republican hero. No move to impeach.
* Bush Sr. No move to impeach.
* Clinton: Impeached due to lying about sex with an intern. Not convicted by the Senate....secret sex not enough of a “high crime and misdemeanor.”
* Bush Jr.: invaded Iraq under false pretenses, ie. Weapons of mass destruction. Yet, no move to impeach.
* Obama: No move to impeach.
*. Trump: ?
Summary: There have been two serious moves of impeachment in the last 70 years, one against a Dem, one against a Republican. Trump is the third.
To interpret those facts as an ongoing Dem plot to impeach Republican Presidents is ludicrous.