Former Colorado Gov. John Hickenlooper John HickenlooperThe Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Cook Political Report shifts Colorado Senate race toward Democrat Willie Nelson playing at virtual fundraiser for Hickenlooper MORE (D) is expected to end his 2020 presidential bid on Thursday, according to a source close to Hickenlooper's campaign.

The news was first reported by The Associated Press and confirmed by The Hill.

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The New York Times reported Tuesday that Hickenlooper was considering putting an end to his presidential aspirations and turning his attention toward a potential Senate run.

If he runs for Senate and wins the Democratic nomination, the former governor would likely end up facing Sen. Cory Gardner Cory Scott GardnerBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Cook Political Report shifts Colorado Senate race toward Democrat MORE (R-Colo.), who is seen as one of the most vulnerable Republicans up for reelection in the country. The seat is rated as a "toss up" by The Cook Political Report.

While Hickenlooper failed to gain traction in the polls as a presidential candidate, he carries a substantial lead in hypothetical Senate polling in Colorado.

A survey conducted late last month by the Garin-Hart-Yang Research Group found Hickenlooper leading the state Democratic Senate primary pack at 61 percent, with his closest competitor trailing at 10 percent.

A Democratic group formed this week to push Hickenlooper to pursue a Senate run and he is one of several presidential candidates who party leaders believe could help the Democrats take back the upper chamber.

Hickenlooper reportedly discussed the possible move with presidential candidate Sen. Michael Bennet Michael Farrand BennetOVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' Senate Democrats demand White House fire controversial head of public lands agency Next crisis, keep people working and give them raises MORE (D-Colo.).

“I am close to John. There’s nothing that he and I discussed that I feel like I can discuss here,” Bennet told MSNBC shortly after that report.

“John Hickenlooper was an exceptional mayor. He was an exceptional governor, and if he chose to run he would be an exceptional senator,” he continued.

— Reid Wilson contributed to this report.