Sen. Susan Collins Susan Margaret CollinsJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally Momentum growing among Republicans for Supreme Court vote before Election Day MORE (R-Maine) said Sunday she decided against running for governor of Maine next year because she felt there was still an important role for her to play in the Senate.

"I looked at all that is going on in Washington today. The issues that we're dealing with are so consequential. I do play a key role as being one of those senators who can work across the aisle and actually get things done," Collins told host Kasie Hunt on MSNBC's "Kasie DC," which premiered on Sunday.

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"And I just felt that I couldn't walk away even though it's a very difficult and troubled time in Washington," the Republican lawmaker continued.

Collins said she entertained the idea of a gubernatorial run "for many reasons," pointing to her friends and family.

"One is that I missed being in Maine full time. Most of my family and many of my friends are there. And governor is a more hands-on job where you can do more to promote economic opportunities, and that really matters to me," she said.

Collins ended months of public speculation on Friday, when she announced that she planned to stay in her Senate role for the rest of the term.