The Republicans didn't have the principles to call witnesses in the Trump trial. They're in lockstep with the White House and are no longer even pretending that they're senators--they're just Trump stooges who serve him without question.
Now we move on--to Trump crowing that he was "acquitted" and "exonerated," and to where we start to boil the Republican senators in oil. Every single one of those assholes who is up for reelection this November should be relentlessly, tirelessly assaulted with the fact that they didn't uphold their oath. Licking Trump's balls should and will have a political cost.
In a way, this is a superior outcome to even a successful impeachment (which would result in His Royal Penceness anyway). Trump is going to lose in November (barring a massive Democrat fuckup, which cannot be ruled out, unfortunately), and this way, he'll drag half a dozen Republican senators down with him.
Another result of the Republican wrecking of the impeachment trial is that now, Biden has even more ammunition against Trump. He'll have the moral and emotional high ground against the Orange Asshole who attacked his son. Frankly, he's about my twelfth choice among the various Democratic candidates, but I think he has the best chance to defeat Trump, and that "trumps" all other considerations.