[JohnnyP]

I have heard that 45 Republican members of congress retired. If they had stuck around, most of them would have retained their seats and they would still be in control.

I wish Trump had called them in for a pep talk, urging them to hang in there for another term.

[Jack Black]

It was 26 Repubicans who retired, and 8 Dems according to this article at 538.com, which is usually pretty good at stuff like this.

Possibly one or two left after this, but it's bad form as this article dates from the last day to get on the ballot.

The number of senators and representatives who declined to seek re-election, excluding those leaving to run for other offices, along with the overall election outcome

Obviously, those running for higher office need to be added to the total.