Judging from the fundraising emails I get from Republican-aligned groups, what Republicans most dread about a Democratic House is the possibility of a third Trump impeachment. But why? With Senate conviction out of the question, impeachment has become a glorified censure resolution. Trump was on track to win reelection in 2020 after his first impeachment, losing only because of the covid-19 pandemic and the public reaction to his leadership during it. The second impeachment didn’t keep him from roaring back to the presidency. If anything, a third impeachment — even one making an airtight case — would bind his base to him more firmly.