If I was Buttigieg right now, I'd be happier then a kid in a candy store.
Lets face it, Biden is done! He and Hunter will be called to testify, and regardless if what he did was legal, it reeks of cronyism, and the American people are tired of cronyism in politics. This, combined with his ever increasing gaffs (such as sucking on his wife's finger during a campaign press event or talking about 7 year olds bouncing on his lap brushing his wet leg hairs down), his campaign is over.
Then, since McConnell has already stated he will be making this a long trial and the trial will more then likely be January through March, all of the remaining strong Dem candidates, who are senators, will be pulled off the campaign trail during the most important part of the primary.
One more thing, democrats really don't like billionaires telling them what to do.
It is now Buttigieg's primary to loose.
Of course Trump will benefit greatly from this as well.
Fact is, the Senate will force the trail to follow the rules of evidence, which state no hearsay or conjecture. This means, out of all the witnesses called by the Dems, only one witness will be able to testify during the trial, Sondland. All others testified on hearsay and conjecture. Then, with Trump calling Schiff and the whistleblower, and the Bidens, he will be able to present his case against a pretty weak case brought forth by the Dems. Considering how the Dems have been reversing on the whistleblower, this testimony will play to the idea this was a Dem coup all along.
This combined with the fact the Dems have not passed a single major piece of legislation will kill the Dems chances of keeping the house. I know a lot of Union people, who typically vote for Dems, that voted for Trump last time around, and all of whom are pissed the USMCA bill is just collecting dust on Pelosi's desk for months now.
They should have voted for a censure, and then got legislation passed so they have something to campaign on. This would have put the Republicans between a rock and a hard place. If the Republicans voted no, they would look like hypocrits, and if they voted yes, they would have felt Trump's wrath, separated the party and been primaried. Politically, censure was the winning play; impeachment is the loosing play.