Sen. Susan Collins Susan Margaret CollinsMcConnell locks down key GOP votes in Supreme Court fight Most Americans think winner of election should pick next Supreme Court justice: poll Murkowski: Supreme Court nominee should not be taken up before election MORE (R-Maine) is suddenly finding herself in the driver’s seat when it comes to getting legislation through the Senate.

The Maine Republican, a centrist in a party drifting to the right, is flexing her strength as a dealmaker and signaling she intends to be a power player while Republicans enjoy just a 51-49 edge in the upper chamber.

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Collins was instrumental in ending a three-day government shutdown earlier this month, convening a bipartisan group of senators in her office for days that slowly tiptoed toward a deal.

On Monday evening, she was back at work, hosting a group of senators who hope to reach a bipartisan immigration deal that would protect from deportation an estimated 800,000 immigrants who came to the U.S. illegally as children, known as “Dreamers,” and beef up security along the U.S.-Mexico border.

Colleagues say the 65-year-old Collins, a frequent presence on cable television with close relationships to members of both parties, could also be at the center of talks on infrastructure and health care later this year.

“Susan has the trust and respect of Democrats and Republicans and she thinks independently,” said Sen. Lamar Alexander Andrew (Lamar) Lamar AlexanderMcConnell locks down key GOP votes in Supreme Court fight Alexander backs vote on Trump Supreme Court nominee: What Democrats 'would do if the shoe were on the other foot' Toobin: McConnell engaging in 'greatest act of hypocrisy in American political history' with Ginsburg replacement vote MORE (R-Tenn.), a close ally of Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellOcasio-Cortez to voters: Tell McConnell 'he is playing with fire' with Ginsburg's seat McConnell locks down key GOP votes in Supreme Court fight Video shows NYC subway station renamed after Ruth Bader Ginsburg MORE (R-Ky.) who has long wanted to get more bipartisan policy done on Capitol Hill.

“This ought to be a very satisfying time for her because she’s right in the center of the action when all we’re going to be doing is bipartisan legislation,” he added.

Collins has long been seen as a swing vote on legislation, and defied her party by voting against legislation to repeal and replace ObamaCare.

But she backed President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE’s tax-cut bill, underscoring her pro-business, traditional GOP bona fides.

The senators meeting in her office like to see themselves as the center of the Senate, and Collins has clearly become a public leader for the group.

If Collins is the most centrist Republican in the Senate, Sen. Joe Manchin Joseph (Joe) ManchinNames to watch as Trump picks Ginsburg replacement on Supreme Court Momentum growing among Republicans for Supreme Court vote before Election Day Gardner on court vacancy: Country needs to mourn Ginsburg 'before the politics begin' MORE (W.Va.) is the most centrist Democrat. He says he recognized a kindred spirit immediately after his arrival in Washington.

“I got here on Nov. 15, 2010, and she’s the person I’ve always looked at as a person who wants to get things done for the country and isn’t so worried about politics,” Manchin said. “I detected that from the first day I was here.”

“We’re friends and we trust each other. She’s definitely in the right place at the right time,” he added.

Collins and Manchin formed a group of centrists now known as the Common Sense Coalition during the 2013 government shutdown, when conservatives led by Texas Sen. Ted Cruz Rafael (Ted) Edward CruzMurkowski: Supreme Court nominee should not be taken up before election Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE (R) opposed government funding legislation that didn’t stop the implementation of ObamaCare.

They revived the group before this year’s shutdown, when Democrats blocked a stopgap spending measure that didn’t protect Dreamers from deportation.

Collins has figured prominently in putting together major bipartisan deals throughout her career.

She was a member of the “Gang of 14” that negotiated a compromise to preserve the judicial filibuster that lasted for nearly 10 years, until then-Senate Majority Leader Harry Reid Harry Mason ReidDemocrats fear Russia interference could spoil bid to retake Senate Graham signals support for confirming a Supreme Court nominee this year Trump signals he will move to replace Ginsburg 'without delay' MORE (D-Nev.) stripped Republicans of the power to block appellate and district court judges in November 2013.

She was also one of only three Senate Republicans who voted for President Obama’s fiscal stimulus package that helped revive the economy in 2009 in the midst of the Great Recession.

For years, centrists such as Collins have complained that partisan battles between party leaders have crowded out debates on the Senate floor.

Manchin thinks a major problem is that McConnell and Minority Leader Charles Schumer Chuck SchumerRepublican senator says plans to confirm justice before election 'completely consistent with the precedent' Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral Graham signals support for confirming a Supreme Court nominee this year MORE (D-N.Y.) grip the reins of power too tightly, preventing rank-and-file colleagues from striking deals that may anger donors and activists.

“When you have so much power that congregates in just two offices, the majority leader and the minority leader, it’s not good for America, it’s not good for the Senate,” Manchin told The Hill Monday.

Republican colleagues say Collins has a unique role to play this year because senators on both sides of the aisle trust her at a time when there’s growing distrust between the parties.

Democrats ultimately accepted a deal to reopen the government after McConnell promised to bring a neutral immigration bill to the Senate floor under an open amendment process after Feb. 8, but many openly questioned whether they could trust him to follow through.

Collins has more credibility among Democrats — something crucial in a hyperpartisan atmosphere.

“Susan Collins is important because, you could argue, she has more credibility than Mitch McConnell or even [Senate Republican Whip] John Cornyn John CornynCalls grow for Biden to expand election map in final sprint Bipartisan praise pours in after Ginsburg's death Chamber of Commerce endorses McSally for reelection MORE on bringing a proposal to Democrats. She works with them all the time,” said a senior Senate Republican aide.

Sen. Jeff Flake Jeffrey (Jeff) Lane FlakeJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Republican former Michigan governor says he's voting for Biden Maybe they just don't like cowboys: The president is successful, some just don't like his style MORE (R-Ariz.), who negotiated a bipartisan immigration deal with Sen. Lindsey Graham Lindsey Olin GrahamMcConnell locks down key GOP votes in Supreme Court fight Will Republicans' rank hypocrisy hinder their rush to replace Ginsburg? Momentum growing among Republicans for Supreme Court vote before Election Day MORE (R-S.C.) and Senate Democratic Whip Dick Durbin Richard (Dick) Joseph DurbinMcConnell focuses on confirming judicial nominees with COVID-19 talks stalled Senate Republicans signal openness to working with Biden Top GOP senator calls for Biden to release list of possible Supreme Court picks MORE (Ill.), which Trump rejected earlier this month, said he was encouraged by the recent bipartisan meetings hosted by Collins.

He said Collins created “a safe space” in her office for colleagues to explore what has been historically a highly charged issue among the liberal and conservative party bases.

Sen. Johnny Isakson Johnny IsaksonGeorgia GOP Senate candidates cite abortion in pushing Ginsburg replacement Loeffler: Trump 'has every right' to fill Ginsburg vacancy before election Bottom line MORE (R-Ga.), one of the Republicans who has attended meetings in Collins’s office, said “she’ll have a significant role.”

“She’s always had a prominent role and bipartisan approach to things,” he said. “She’s a good lady.”