With 10 months to go until the 2022 midterms, two of the 34 senators up for reelection in November have yet to announce whether they’ll seek another term on Capitol Hill.

But both Republican Sens. Ron Johnson of Wisconsin and John Thune of South Dakota say announcements on their pending decisions are expected soon.

"That decision will be made here shortly," the two-term Johnson told Fox 11 News in Green Bay, Wisconsin two weeks ago. 

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The Senate is currently split 50-50 between the two major parties, but Democrats hold a razor-thin majority due to the tie-breaking vote of Vice President Kamala Harris through her constitutional duty as president of the chamber. That means Republicans merely need a net gain of one seat to retake the Senate in November to regain control of the chamber they lost a year ago when they were narrowly swept in Georgia’s twin Senate runoffs.

Sen. Ron Johnson

Senator Ron Johnson of Wisconsin along with other Senate Republicans, criticize the CDC's recent mask recommendations.  (Getty Images)

The Senate contest in Wisconsin – a key battleground state that President Biden narrowly carried in the 2020 election – is one of a handful of contests that could ultimately decide which party controls the Senate.

Johnson vowed as he ran for reelection in 2016 to only serve two-terms, but with the Democrats controlling the White House and both houses of Congress, the senator says times have changed.

"That’s certainly one of the things that’s weighing on my mind. If you’re in a position to offer some improvement, help the situation out, would you just walk away?" Johnson told Fox 11 News.

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Johnson defeated three-term Democratic Sen. Russ Feingold in the Tea Party fueled GOP wave election of 2010, and then edged Feingold again in a 2016 rematch.

Johnson stirred controversy in 2021 by questioning COVID-19 vaccines, seemingly downplaying the effects of climate change, and asserting that he never felt threatened by the rioters that stormed the U.S. Capitol on Jan. 6 of last year as they attempted to disrupt congressional certification of Biden’s Electoral College victory over then-President Donald Trump. He praised those who attacked the Capitol as people who "love this country."

A dozen Democratic candidates – including Wisconsin Lt. Gov. Mandela Barnes – are seeking their party’s Senate nomination.

While the Senate race in Wisconsin’s considered a toss-up, the contest in solidly red South Dakota is considered safe for the Republicans.

Thune, a three-term senator who as minority whip is the number two ranking Republican in the chamber, told reporters on Capitol Hill that he would make a decision by the end of 2021.

Sen. John Thune

Sen. John Thune of South Dakota, on Capitol Hill in Washington, DC, May 12, 2021. - (Photo by Susan Walsh / POOL / AFP) (Photo by SUSAN WALSH/POOL/AFP via Getty Images) (Susan Walsh)

Thune, who remains very popular in South Dakota., raised eyebrows early last month when he told a reporter in his home state that his wife Kimberley wants him to return home.

"She is done with it," Thune said in an interview with the Black Hills Pioneer.

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Thune earned Trump’s ire a year ago, for publicly speaking out against the then-president’s efforts to overturn his 2020 election loss to Biden. 

Trump briefly urged South Dakota Gov. Kristi Noem, a close ally of the former president, to launch a primary challenge against Thune. But Noem dismissed any bid for Senate and is running next year for reelection as governor.