The midterm election gauntlet, flush with bitter and costly primaries that will determine control of Congress and governors’ offices, began on Tuesday in Texas.
Compared with the frequency of presidential primaries, the midterm calendar is much more spread out. It spans more than six months, with the next group of contests scheduled for May, including the key states of Ohio, Pennsylvania, North Carolina and Georgia.
Some states don’t hold their primaries until September, including New Hampshire, which features a fiercely-contested Senate race.
All but once in the past decade, Texas has held its primaries in early March, including during presidential election years. This year’s primary date on Tuesday, was tied to a redistricting plan that was approved last year by the Legislature.
Here are some other dates:
May 3: Ohio
A swing state that was carried twice by former President Donald J. Trump, Ohio features a crowded G.O.P. Senate primary for the seat of the Republican Senator Rob Portman, who is retiring.
May 17: Pennsylvania and North Carolina
In Pennsylvania, a the race for an open Senate seat is poised to play a key role in determining whether Democrats maintain control of the chamber. The G.O.P. field is headlined by the celebrity physician Dr. Mehmet Oz.
In North Carolina, the impending retirement of Senator Richard Burr, a Republican, has created a frenzy of candidates.
May 24: Georgia
Georgia, which helped Democrats flip the Senate in 2021 and delivered a victory to Joseph R. Biden Jr. in 2020, features marquee contests for governor and Senate. Stacey Abrams, a Democrat running for governor, is back. And the secretary of state’s race is notable, too.
June 14: Nevada
The last time Catherine Cortez Masto, the first Latina senator, was on the ballot, outside groups flooded Nevada with more than $90 million. Now, she is up for re-election.
Adam Laxalt, a former Nevada attorney general who ran unsuccessfully for governor in 2018, must get past the G.O.P. primary to challenge her.
Aug. 2: Arizona and Michigan
Arizona has emerged as one of the top prizes this year, with an open seat for governor and a fiercely contested Senate race. The Senate seat is held by Mark Kelly, a Democrat who won a special election in 2020 to fill the seat once held by John McCain.
In Michigan, Gov. Gretchen Whitmer, a Democrat and focus of conservatives’ ire over pandemic restrictions, is running for re-election. In addition to selecting a nominee for governor, Republicans have been grappling with internal tensions and the influence of Mr. Trump, who made a string of endorsements in House races.
Both states have noteworthy secretary of state races, too.
Aug. 9: Wisconsin
Wisconsin has potential for both parties, with contests for governor and Senate drawing a crowded field of candidates.
Senator Ron Johnson, a Republican whose approval rating has cratered amid an onslaught of television ads criticizing him for casting doubts about Mr. Biden’s election, is a top target of Democrats. Republicans are focused on taking the seat of Gov. Tony Evers, a Democrat.
Sept. 13: New Hampshire
The winner of the G.O.P. primary for Senate will have less than two months to mount a general election campaign against Senator Maggie Hassan, a Democrat, who is considered vulnerable.