Changes
====MO–1 Republican primary====
==Nevada==
Redistricting at the hands of the Democratic Party in Nevada made the 3rd and 4th congressional districts slightly more Democrat-favoring, though doing so compromised the party strength in the 1st congressional district.<ref>Gonzales, Nathan L. (December 14, 2021). [https://rollcall.com/2021/12/14/under-new-nevada-map-a-gop-wave-could-swamp-all-three-democrats/ Under new Nevada map, a GOP wave could swamp all three Democrats]. ''Roll Call''. Retrieved December 19, 2021.</ref> As a result, all three of the Democrat-held seatsare in jeopardy if Republicans perform strongly.
==New Hampshire==
