Anti-Incumbent Fever?

37 Senate seats were up for grabs.  14 Senators either retired or decided not to run this year, so 23 Incumbents were running.  Only 2 lost.

254 Congressional seats were up for grabs.  37 Representatives either retired or decided not to run this year, so 217 Incumbents were running.  4 of those Incumbents lost in the primaries.  I have not seen how many of those 213 that remained in the General Election lost, but will update this post if I find the number.