Eric Swalwell ends presidential bid after failing to gain traction

He announced his long shot presidential bid in April, pledging to mount a campaign that focused on the need for generational change in the Democratic Party and his commitment to confronting gun violence in the United States.

Swalwell, though, failed to gain traction in a crowded Democratic field and only qualified for the first set of Democratic debates because of the Democratic National Committee's 1% poll standard, not because of grassroots support.

Swalwell told CNN's Erin Burnett on Monday that he was "running to win and make a difference," and didn't have an honest shot at victory in a field of over 20 candidates.

"If we didn't see a path to winning, there was no other reason to stay in," he said. "I want to narrow this field and let others have their shot so that we can get a nominee that can beat Donald Trump."

Swalwell recently canceled a two-day trip to New Hampshire on July 3 and 4, in the first signal that his campaign might be coming to an end.

The high point of his campaign was likely his direct and blunt challenge to former Vice President Joe Biden, the race's frontrunner, during the late June debates, where the California Democrat noted that he was six years old when "a presidential candidate came to the California Democratic convention and said it's time to pass the torch to a new generation of Americans."

"That candidate was then-Sen. Joe Biden," Swalwell added as the crowd gasped. "He was right when he said that 32 years ago. He is still right today."

Biden shot back: "I'm holding onto that torch. I want to make it clear."

But that was not enough to sustain Swalwell's campaign, which struggled to gain attention in the Democratic field despite the candidate's availability to media.

Swalwell, throughout his campaign, urged Democrats to "go big and be bold." He proposed a gun buyback program to get certain weapons off America streets and said he would fund a study on gun violence.

Standing outside the National Rifle Association headquarters in Virginia in June, Swalwell said, "We're not just here to stand up to the NRA ... we're here to beat the NRA."

While Swalwell would not formally endorse any one Democrat on Monday, he told Burnett that his support will hinge on the candidates' work to combat gun violence.

"I'm going to take some time, I'm going to be looking at who will elevate the issue of gun violence as their top issue, and to promise Americans that we don't have to live this way," he said.

Swalwell said his greatest challenge on the campaign trail was differentiating himself from other members of the crowded Democratic field.

His campaign, at times, was defined by awkward moments, like when he looked to deliver a clever line at the June Iowa Democratic Party's Hall of Fame celebration.

"I will be bold without the bull," the congressman said to a quiet audience.