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's (D) campaign announced on Tuesday that he raised $2.1 million in the first five weeks of his Senate campaign, nearly double what he raised in the second quarter as a presidential candidate.

The campaign said over 21,000 people contributed, and that the average contribution was $26. The campaign ended the third quarter with $1.7 million cash on hand.

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Additionally, Hickenlooper received no corporate PAC money, according to the campaign.

The disclosure comes over a month after Hickenlooper ended his 2020 presidential campaign, and launched a bid for Colorado's Senate seat against vulnerable Republican Sen. Cory Gardner Cory Scott GardnerBreaking the Chinese space addiction Trump dumbfounds GOP with latest unforced error Billionaire who donated to Trump in 2016 donates to Biden MORE.

The Cook Political Report currently rates the Colorado Senate race as a "toss up."

Hickenlooper failed to gain traction on the presidential campaign trail, causing him to lag in the polls and in fundraising, bringing in just $1.1 million in the second fundraising quarter earlier this year.

Democrats urged Hickenlooper to jump into the Senate race, where he is seen as a potentially formidable challenger to Gardner due to his name recognition in the state.

An Emerson College poll released in August showed Hickenlooper leading Gardner by 7 points in a hypothetical match-up.

The former governor will first have to get through a crowded Democratic Senate primary, which already includes roughly a dozen candidates.