I might be wrong, but if a DEM Prez was caught extorting a foreign country for personal political benefit as much as Trump has been exposed, I think the Dem defense would collapse and the Dem Prez would be heading out the door.
But the GOP will defend the indefensible and play hardball as long as possible. So we have documents being withheld from the Congressional inquiry, and forcing protracted court battles; incredible defenses such as "Matt Whitaker, Trump’s former acting attorney general, arguing that what Trump did isn’t grounds for impeachment — because “abuse of power is not a crime.” Seeming ready to argue that an actual crime must be committed and proven to impeach. trump probably did commit a crime by seeking foreign assistance in his reelection, but it muddies the waters and delays things to force the House to prove the president committed a crime, instead of just violated the public trust and used the power of gov't for his personal benefit.
Amazing the lengths the GOP will go to get and retain power.