54 protesters, many Bernie Sanders supporters, arrested at DNC

PHILADELPHIA — After a rocky start to the convention, Democrats took aim at Donald Trump, the man who wants to “make America great again” as they tried to take the focus off of the controversy surrounding leaked emails conspiring against Bernie Sanders campaign.

Speakers took to the stage with a message of unity after a day of protests from Sanders’ supporters.

On a hot day in the City of Brotherly Love, there was not much for Hillary Clinton.

Sanders supporters couldn’t hide their displeasure with the Democratic Party.

Their frustration was on display a day after Democratic party chair Debbie Wasserman Schultz announced she would step down at the end of the convention. Sanders' loyalists heckled her at a Florida delegation breakfast and many expressed dismay that Clinton had given the Florida congresswoman the position of honorary chair of the campaign's "50-state program." She did not appear at the convention podium and later watched the proceedings from a private suite.

More than 50 of Sanders supporters were arrested outside the Wells Fargo Center in Philadelphia Monday.

In a statement, Philadelphia police said, “During this gathering a number of them began climbing a fence, attempting to gain access to a restricted secured area. The group was told several times to cease their attempts, but after refusing to do so, they were detained by police and issued code violation notices (CVN) for Disorderly Conduct which is a $50 fine.”

A University of Florida graduate was behind a vigil she organized to “mourn the demise of democracy.”

“We know democracy is gone. It’s been gone for a long time,” said Gail May. “We’re going to mourn loss that will allow us to plan for its rebirth.”

Sanders' delegates chanted the Vermont senator's name during the start of the convention and booed lustily at any mention of rival Hillary Clinton. Behind the scenes, Sanders and his campaign tried to persuade his delegates not to disrupt the proceedings.

Sanders was the last to speak at the convention Monday night.

He received a standing ovation and said no one is more disappointed than he is over not being the Democratic presidential nominee.

But the Vermont senator is urging his supporters to take "enormous pride" in the political revolution to transform America that they've started, and expressed support for Clinton.

He also responded to Trump's tweet about Sanders still supporting the party.

The Associated Press contributed to this report.

Cox Media Group