The impeachment trial has been a case study. It is controlled today by the Republican Party, and that party has changed. Every single Senate impeachment trial before the current one — all 15, for lower-level officials as well as both Presidents Andrew Johnson and Bill Clinton — included witnesses. But the current Republican Party cares more about holding on to power than anything else. Why has the Republican Party changed?

Source: New York Times February 03, 2020 00:55 UTC