Watch Now: See Kamala Harris’ full DNC convention speech, plus live updates and a preview of tonight’s wrapup

Democratic National Convention delegates broke a historic barrier by nominating Kamala Harris as Joe Biden’s running mate and the first Black woman on a national political ticket.

Also Wednesday, former President Barack Obama warned that American democracy may not survive if Donald Trump is reelected, delivering a scathing assessment of his successor. Obama, himself a barrier breaker as the nation’s first Black president, pleaded with voters to “embrace your own responsibility as citizens – to make sure that the basic tenets of our democracy endure. Because that’s what is at stake right now. Our democracy.”

The third night of the Democrats’ four-day convention stood out for its urgent focus on voting and the party’s commitment to progressive values on issues like gun violence and climate change. High-profile party figures spoke directly to women and all voters of color, whose energy this fall could ultimately decide the outcome.

Harris, a 55-year-old California senator and daughter of Jamaican and Indian immigrants, addressed race and equality in a personal way Biden cannot when he formally accepts his party’s presidential nomination on Thursday.

Next week it’s Trump’s turn. The president is expected to break tradition and accept his nomination from the White House lawn.

What’s coming up Thursday?