Hickenlooper, who is struggling to get out of a crowded field of candidates, has not yet decided whether to run for the Senate, as party leaders have called him to do, sources say. He has no plans to announce the decision Thursday.
The Hickenlower decision was first reported by the Associated Press.
Hickenlower formulated his candidacy for the Democratic Left. The two-time Colorado governor was a moderate voice in the mainstream, making his opposition to Democratic socialism – including Vermont Senator Bernie Sanders' political philosophy central to his campaign.
But this strategy failed to win the grip, and the Hicken-Looper campaign lost three of its senior employees in early July, including Brad Komar, campaign manager. The losses signaled to many Democrats that Hikenlupper's campaign was on its feet, but Democrats close to the governor said they wanted to stay and weigh their chances after the CNN debate in late July.
Following that debate, the former Denver mayor will struggle to take the stage in the next round of debates in September, as he lags behind both fundraising and voting thresholds for qualification.
Hikenlupper's exit already opens the possibility of a former popular governor running for the Senate in Colorado, challenging Sen. Corey Gardner, a Republican considered one of the most vulnerable lawmakers in 2020.
in the Senate, Chuck Schumer of New York for Gardner's potential challenge after the July debate. He went ahead with his presidential campaign after that conversation, attending the Iowa State Fair in Des Moines last weekend, along with many of the other presidential candidates.
Hicklenuper faces two issues in the Senate term, though: the governor stood up to run for Senate and Democratic Senate candidate Mike Johnston raised more in the second quarter of 201
The former governor spent the first few months of his presidential campaign waiting for the idea of him jumping into
"If the Senate is so good, how are all these senators trying to get out?" Hicklenuper told CNN earlier this year, nodding to the number of Democratic senators running for president.
"I am not attracted to the Senate," he said. "It just doesn't appeal to me."
But until last weekend, when his presidential campaign ended, he told CNN, "I'm not ruling out anything."
Even in a populous Democratic primary, Hickenlooper is still regarded as the party's strongest candidate to take over Gardner. Curtis Hubbard, a Democratic strategist for a company that worked for Hickenlooper in the past, recently registered domain names like Hick4Senate.com in the hope that the former manager switches races.