The race is on for who will be the Democratic presidential candidate in 2020. Once again, 20 candidates are spending two nights trying to convince US Democrats that they are the right person to run against Donald Trump.

This time, CNN is sponsoring the event, which is taking place at the Fox Theatre in Detroit, Michigan. Things were lively on the first night, as front-runners Bernie Sanders and Elizabeth Warren made nice with each other while most of the other candidates went on the attack. Tonight, Joe Biden will test his mettle against Kamala Harris, Cory Booker, and other hopefuls.

If you want to follow these debates as they happen, here’s how to do it:

When are the debates?

Like last month’s debates, these were split up into two nights: Tuesday, July 30th, and Wednesday, July 31st, from 8PM to 10PM ET.

How do I watch?

CNN is hosting, and it’s offering several ways to catch the debates. You can watch them:

Streamed online at CNN.com

Via the CNNgo app on Apple TV, Roku, Amazon Fire, Chromecast, and Android TV

On TV at CBSN. (A cable subscription is not required.) In addition, CBSN will feature coverage before and after the debates.

If you’re looking for simultaneous commentary, a number of sites will be featuring live chats, including The New York Times and The Washington Post, or you can sign on to your favorite social media chat and exchange your views with other watchers.

Who’s actually debating?

It’s a full house both nights. Once again, each candidate gets 60 seconds to respond to a question and 30 seconds for rebuttal. According to CNN, colored lights will be used to help the debaters time their responses. Anyone who starts interrupting will get their wrists slapped by having their time reduced.

Tuesday’s lineup included:

Wednesday’s lineup includes:

Who’s moderating?

The questions will be asked by CNN correspondents Jake Tapper, Dana Bash, and Don Lemon.

This may be the debate that finally filters down the crowd of Democratic hopefuls to a more reasonable number. So if you’re at all interested in today’s politics, this is one you probably won’t want to miss.

What if I missed them?

CNN appears to have full replays of the first night’s debates right here, in addition to highlights of the debates on its site and Facebook group, CNN Replay, along with commentary on the proceedings. Key moments of the debate can also be found on the YouTube channels and sites of major news outlets as well.