“Right now, we have a president who turns our tragedies into political weapons,” Harris said. “Joe will be a president who turns our challenges into purpose.”
An expert explains why the New York congresswoman did not mention Joe Biden in her speech, a formality that caused confusion on social media.
Democrats expand the tent in their fight to defeat President Donald Trump.
Speakers at this year's convention include party leaders, several Republicans urging their party to vote against Trump, and regular people who are affected by policy differences every day.
“I will be speaking at the #DNC Convention because I believe that America needs to go in a different direction," Kasich tweeted on Monday.
Meanwhile, Republicans said they feel confident they can still pull off their convention in Charlotte, North Carolina, that same month.