Live Updates: Results released as polls close in Texas primary

The midterm elections began Tuesday in Texas, full of bitter and costly primaries that will determine control of Congress and the offices of governors.

Compared to the frequency of the presidential primaries, the mid-term calendar is much more scattered. It’s been running for over six months, with the next group of competitions scheduled for May, including the key states of Ohio, Pennsylvania, North Carolina and Georgia.

Some states don’t hold primaries until September, including New Hampshire, which has a fierce Senate race.

Almost only once in the past decade has Texas held a primary in early March, including during presidential election years. This year’s primary date on Tuesday was tied to the redistricting plan that was approved last year by the Legislature.

Here are some other dates:

May 3: Ohio

The swing state, twice led by former President Donald J. Trump, of Ohio is in a crowded GOP Senate primary to replace Republican Senator Rob Portman, who is resigning.

May 17: Pennsylvania and North Carolina

In Pennsylvania, the race for a vacant Senate seat could play a key role in determining whether Democrats retain control of the House. The region of the Republican Party is headed by the famous physician Dr. Mehmet Oz.

In North Carolina, the impending resignation of Republican Senator Richard Burr has caused a stir among candidates.

May 24: Georgia

Georgia, which helped Democrats flip the Senate in 2021 and brought victory to Joseph R. Biden Jr. in 2020, is hosting important contests for governor and the Senate. Stacey Abrams, a Democrat running for governor, is back. The race of the Secretary of State is also noteworthy.

June 14: Nevada

The last time Catherine Cortez Masto, the first Hispanic senator, was on the ballot, outside groups flooded Nevada with more than $90 million. Now she is ready for re-election.

Adam Laxalt, a former Nevada Attorney General who unsuccessfully ran for governor in 2018, must enter the GOP primary to challenge it.

August 2: Arizona and Michigan

Arizona has been one of the top prizes this year, with an open seat for governor and a fierce race in the Senate. The Senate seat is held by Mark Kelly, a Democrat who won the 2020 special election to fill the seat once held by John McCain.

In Michigan, Gov. Gretchen Whitmer, a Democrat and the center of conservative ire over pandemic restrictions, is running for re-election. In addition to picking a gubernatorial candidate, Republicans have struggled with internal tensions and the influence of Mr. Trump, who has provided support in the race for the House of Representatives.

Both states also have noteworthy racial secretaries of state.

August 9: Wisconsin

Wisconsin has bipartisan potential as the gubernatorial and Senate contests attract many candidates.

Sen. Ron Johnson, a Republican whose approval ratings have plummeted due to an onslaught of television ads criticizing him for questioning Mr. Biden’s election results, is a top Democratic target. Republicans are focused on taking the place of Gov. Tony Evers, a Democrat.

September 13: New Hampshire

The winner of the GOP Senate primary will have less than two months to organize a general election campaign against Senator Maggie Hassan, a Democrat who is seen as vulnerable.