The Senate on Thursday lauded one of its own, Susan Collins Susan Margaret CollinsGraham: GOP will confirm Trump's Supreme Court nominee before the election Gardner signals support for taking up Supreme Court nominee this year Tumultuous court battle upends fight for Senate MORE (R-Maine), for casting her 6,000th consecutive roll-call vote.

"Our colleague is willing to do just about anything to make sure she's here in this chamber," said Majority Leader Mitch McConnell (R-Ky.), adding that he's "not sure sure surgery, a tsunami, or the most wicked Maine nor-easter" could stop Collins from getting to a vote.

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Her 6,000th vote came on a failed procedural motion to end debate on a resolution of disapproval for the Iran nuclear deal.

Minority Leader Harry Reid (D-Nev.) also praised Collins, saying that they've worked together on some "extremely important things for the country."

"Some of the things I won't bring up because it might not sit with some of my Republican friends," he added.

The Maine lawmaker is one of the Senate's most moderate Republicans.

"I had the occasion to sit next to her in a function in Maine when the vote record came out," he said. "I looked at mine, I had it in my hand ... and I leaned over to her and I said 'look, I've got a 98.6 percent attendance record of voting in the Senate,' and she leaned back and said 'you'll never catch me.'"