I'm a little surprised that we're acting like Bill Clinton's experience with impeachment is going to be repeated when the real comparison is to Nixon (except that Trump is more feckless).
Here's a report that shows tremendous examples of self-dealing, blatant corruption, intimidation, de facto witness tampering, and a wink and a nudge and a dare to impeach. And the last time a Republican president was facing something this grave, how did it end? He resigned (I know Donald won't), his successor who wasn't directly tainted by the scent of scandal (Gerald Ford was appointed to the vice presidency) nevertheless pardoned him, and the Republicans paid a price.
Ford had an advantage in that he wasn't directly implicated, and he was still defeated on his own because he denied America catharsis from the Nixon experience. And even if Trump is removed, President Pence would at least have to ask why in the hell he he was willing to debase himself for one of the most unrepentant sinners of the age. Did Mike Pence commit a crime? Maybe not. Did he aid and abet a criminal-ass Administration? Yup.
So did the representatives and senators that acquiesce to this government. They debase themselves to defend a man they know was corrupting the office beyond belief. Throw Out the Crooks 2020.