Boos and Cheers Ring Out as DNC Gets Underway

Actress Eva Longoria speaks at the Democratic National Convention in Philadelphia, Penn, July 25, 2016.

As the convention opened, audible boos could be heard as speakers brought up the Hillary Clinton-Tim Kaine ticket, even as Clinton supporters tried to muffle out the protest with cheers in support.

Stephanie Rawlings-Blake, mayor of Baltimore, opens Day 1 of the DNC at the Wells Fargo Center.

A supporter of Hillary Clinton wears a decorated hat on the Convention floor before the start of the first day of the Democratic National Convention.

The four-day convention is expected to end with Hillary Clinton formally accepting the nomination of the Democratic Party as their presidential candidate in the 2016 election.

An activist with the coalition "Democracy Spring" is arrested outside the site of the 2016 Democratic National Convention.

Delegates dance as singer Paul Simon performs on the DNC stage.

Bernie Sanders supporters with tape over their mouths reading 'Silenced By DNC' stand in the arena.

Although Sanders has endorsed Clinton, and is expected to reiterate the need to defeat Donald Trump in November when he speaks on Monday night, a number of his delegates were dismayed after the Wikileaks release of emails from party officials, which the DNC apologized for on Monday.

Sen. Cory Booker delivers remarks on the first day of the Democratic National Convention.

Delegates shout on the first day of the Democratic National Convention.

Bernie Sanders supporters chant and wave signs opposing the Trans-Pacific Partnership agreement during proceedings.

Delegates cheer during the first day of the Democratic National Convention.

Sanjay Patel of Satellite Beach walks around at Wells Fargo Arena.

New Mexico delegates cheer during the convention.

First lady Michelle Obama addresses the Democratic National Convention.

Delegates stand during Massachusetts Sen. Elizabeth Warren's speech.

Senator Elizabeth Warren speaks during the first session at the Democratic National Convention.

Elizabeth Warren warned delegates that Donald Trump was pursuing a strategy of "divide and conquer."

Former Democratic Presidential candidate, Sen. Bernie Sanders is met by a supportive crowd as he takes the stage during the first day of the Democratic National Convention.