That is the topic of my latest Bloomberg column, here is one key excerpt:
A second factor, however, pushes in the opposite direction. If Trump is viewed as too corrupt, too poisonous or too unreliable by swing voters, some of these senators also run the risk of losing their jobs. These senators therefore wish to rein in Trump, if only for selfish reasons. Trump and his policies are not very popular, as illustrated by numerous polls. And some senators might decide that loyalty to country, and to the future of the world, also argues for constraining Trump.
Reining in Trump does not have to mean forcing the leopard to change its spots, which is probably impossible anyway. But it could mean nudging Trump to be less outrageous: Don’t respond to the Ukraine accusations by encouraging China to investigate Joe Biden’s son, for example. Be more careful in your dealings with Turkey and the Kurds. Refrain from calling Never Trump Republicans “human scum.”
OK, so now to take the next step: How can these senators possibly check Trump? The threat of impeachment is their most potent weapon…
The upshot is that McConnell’s power over the president is growing. These are exactly the kinds of wrist slaps Trump notices.
The question, of course, is how Trump will respond to critical signals from Republican senators. My guess is that he will not play a cooperative “tit for tat” strategy, trading signals in a rational manner to keep senators in line and proceeding toward an orderly resolution of the impeachment judgment from the House. Rather, the signals sent his way might enrage him or raise his stress level to the point where he behaves less rationally than usual. Then the Senate will have to work all the harder to constrain Trump, thereby upping the stakes — and the stress — once again.
We will see.