Senator Colliins says she's "bridge between the two sides of the aisle", one reason she is staying in Senate.
Although she has been one of Maine's most popular politicians for some time, there was no guarantee that she would win her party's nomination in the June primary. "I continue to believe that Congress can, and will, be more productive." .
Democratic Chairman Phil Bartlett said Friday that it "doesn't say much for the Maine Republican Party" that Collins would rather stay in D.C. than contend for governor.
Collins has been a pivotal vote in the Senate this year on defeating Republican attempts to repeal the Affordable Care Act.
There are five women among the 52 Republicans in the Senate -Collins, Lisa Murkowski (AK), Joni Ernst (IA), Deb Fischer (NE), and Shelley Moore Capito (WV).
"Let me address the elephant in the room" she said, at 8:20 a.m.", said Collins, who then said she will remain in the Senate and not run for governor, as has been discussed and speculated.
Three Republican candidates are now in the race.
The four-term incumbent for weeks has been flirting publicly with the idea of launching a bid to succeed Governor Paul LePage, a fiery conservative who was first elected in 2010 on a wave of Tea Party support. Most recently, of course, Collins has played an important role as one of the handful of Republican Senators that singlehandedly blocked efforts in that body to pass a bill that would "repeal and replace" the Affordable Care Act.
Urgent action is needed to stabilize the insurance markets, including creating high-risk pools, she said. In July, Collins was caught on a hot mic voicing concerns about Trump's understanding of the budget and debt ceiling, as well as responding to a Republican congressman who challenged her to a duel over her position on health care, in part by calling him "unattractive".
Had Collins chose to run for governor she would have joined a crowded field to replace two-term Republican Gov. Paul LePage, who can not run again because of term limits.
Among other assignments, Collins is a member of the Senate Intelligence Committee, the panel leading the congressional Russian Federation investigations.