Per FiveThirtyEight's latest scrutiny of related polling, Trump's not that popular back home any more.
The latest political polls and polling averages from FiveThirtyEight.
projects.fivethirtyeight.com
I'm assuming there are some stupid respondents in the polls, although if they are not adequately represented in the polls, maybe that has somehow affected their over-representation in the House of Representatives, ya think?
The Republican honchos read polls. So it's not like they don't know their guy's charm has faded. That just affirms my notion that the reason they don't stand up and renounce the guy is sheer cowardice left over from six years of kowtowing to Trump because he initially brought them a slightly expanded base.