Day one of the Democratic National Convention in Philadelphia kicked off with quite a bit of chaos. But it ended with a call for unity.

That call came from Bernie Sanders, who’s supporters had been booing and shouting throughout the day on the convention floor.

Sanders spoke during primetime Monday night and walked out to loud applause. He said no one is more disappointed than he is that he’s not the nominee. He then listed off a number of his proposals that have been pushed front and center – because he says he was in the race. But while many remain disappointed he’s not the nominee, Sanders urged his supporters to unite behind Clinton.

“In these stressful times for our country, this election must be about bringing our people together, not dividing us up. While Donald Trump is busy insulting one group after another, Hillary Clinton understands that our diversity is one of our greatest strengths,” Sanders said.

 

First Lady Michelle Obama also took the stage on the first day of the convention. She took a jab at the Republican nominee saying she wants a president who knows issues “cannot be boiled down to 140 characters.”

She also praised Clinton saying she’s advancing the cause for women.

“And because of Hillary Clinton, my daughters and all our sons and daughters now take for granted that a woman can be president of the United States,” Obama said.

 

Meanwhile, Massachusetts Senator Elizabeth Warren urged Democrats to unite behind Clinton to beat Donald Trump. She said Trump only cares about himself, and democrats are stronger together.

“When we turn on each other we can’t unite to fight back against a rigged system. Well, I’ve got news for Donald Trump, the American people are not falling for it,” Warren said.