With Sens. Ron Johnson’s (R-Wis.) and John Thune’s (R-S.D.) recent announcements that they will seek re-election, all incumbent senators up for re-election in 2022 have made their decisions. Twenty-eight senators are seeking re-election—15 Republicans and 13 Democrats. Six senators are retiring—five Republicans and one Democrat. This is the highest number of Republicans not seeking re-election since at least 2012.
In every election cycle within that time until the current one, either two or three Republican senators did not seek re-election. The number of retiring Democrats has ranged from zero to six.
The six open races in 2022 are in Alabama, Missouri, North Carolina, Ohio, Pennsylvania, and Vermont. Republicans hold the Senate seat in all states except Vermont. Three of the open Senate races—in North Carolina, Pennsylvania, and Ohio—have at least one competitive rating (Toss-up, Tilt Republican, or Lean Republican) from three election forecasters.
Our battleground Senate races list currently consists of eight states: Arizona, Florida, Georgia, Nevada, New Hampshire, North Carolina, Pennsylvania, and Wisconsin. Democrats and Republicans each hold four of the battleground seats going into the elections.
Democrats have an effective majority in the Senate, with each party holding 50 seats and Vice President Kamala Harris (D) serving as the tie-breaking vote.