Steve Bullock ends his 2020 presidential bid

A vocal critic of the thresholds put forward by the Democratic National Committee (DNC), Bullock failed to qualify for all but one of the Democratic Presidential Debates over the summer.

Bullock joins a long list of current and former governors who have failed to gain traction in recent presidential election cycles. Currently, former Massachusetts Governor Deval Patrick is the only candidate with gubernatorial experience left running for the Democratic nomination.

During his first interview after announcing in May, Bullock told CBS News' Ed O'Keefe that the president was not a good role model, saying: "When we're expecting more from our preschoolers at times than a president, that's not the role model that I think most families want for their kids."

His campaign put a damper on any hopes of Bullock using his popularity in Montana for a senate run.

"Governor Bullock will continue to faithfully and effectively serve the people of Montana as their Governor," said Galia Slayen, Bullock Campaign communications director. "While he plans to work hard to elect Democrats in the state and across the country in 2020, it will be in his capacity as a Governor and a senior voice in the Democratic Party — not as a candidate for U.S. Senate."

Bullock was not the only Democrat to exit the race during the first two days of December. Former Pennsylvania congressman Joe Sestak ended his presidential bid Sunday.

Ed O'Keefe Adam Brewster and Musadiq Bidar contributed to this report.

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