The Impeachment of Hillary Clinton.

I love alternative reality scenarios and this one is easy to do.

Here is the alternative reality where Hillary Clinton becomes president because she won the popular vote with a margin of 2.1% (or nearly 3 million votes). Forget the Electoral College result because Katherine the Great didn't persuade the founding fathers to put that in the Constitution.

The Republicans control the house 241-192 and Senate by 52-48.
https://www.cnn.com/election/2016/results
 
Are you telling me that Hillary Clinton WOULDN'T be under investigation for anything and everything? The Clinton Foundation is still under scrutiny in our current reality (and "no" it hasn't gotten a clean bill of health, but Trump is really great for distracting people).

I'm sure there would have been loads of things the Republicans could go after Hillary for, but since I mentioned the Clinton Foundation, let's go with that. Especially since you can see a clip of the December 2018 hearings here.
https://www.c-span.org/video/?c4767670/user-clip-clinton-foundation-charity-fraud


“Some interviewees reported conflicts of those raising funds or donors, some of whom may have an expectation of quid pro quo benefits in return for gifts,” the lawyers warned.

I wouldn't be so smug about impeachment if I were a Democrat since the shoe very easily could have been on the other foot.

And I would put money that Clinton would have been impeached and removed since the Republicans had control of both houses after the 2016 election.