Donald Trump wants Biden to be impeached for two reasons: first, simply for revenge; and second, for false equivalence. It will permit him to argue on the campaign trail that Biden is in the same ethical boat as he is. Since Trump wants it, the base demands it, too. As we know, the base usually gets what it wants.
But a frivolous impeachment followed by a quick acquittal will only bring shame to the GOP, alienate swing voters, and further endanger the seats of GOP House members in Biden districts. That doesn’t make political sense.
How will the leadership square the circle? By talking vaguely about how the investigation is ongoing, and about how compelling the evidence is, without actually doing anything. It’s dishonest, sure, but it’s the GOP, so what do you expect?