welcome to debate #1, night 2. the first thread on this turned out to be about twice as active as i was expecting (i estimated at most 50 or so replies), and that was for the "undercard" so unless something changes with this night, i think we'll be doing these in pairs from here on out--at least until either the DNC pushes out enough candidates for one debate, or activity drops significantly in these threads. previous night's thread can be found here if you'd like to continue the discussions of last night's candidates. anyways here are all the details you'd ever need, and probably then some:

first off, i recommend you sort by newest first instead of the default since this thread will likely be semi-active and covering a live event.

How to Watch:

The debate is being broadcast by NBC News, MSNBC and Telemundo, and will air live across all three networks starting at 9 p.m. ET.
Telemundo will broadcast the debate in Spanish.
The debate will stream online free on NBC News' digital platforms, including NBCNews.com, MSNBC.com, the NBC News Mobile App and OTT apps on Roku, Apple TV and Amazon Fire TV, in addition to Telemundo's digital platforms.

livestreams will also be available on Twitter, Facebook, and Youtube because the DNC mandated that of its partners for the debates.

The Candidates:

Democratic Presidential Debate: See The 20 Candidates Who Will Be Onstage

• Michael Bennet (Senator from Colorado)

Bennet is running on fixing a broken political system, the blame for which he puts at the feet of Republican Senate leader Mitch McConnell. Bennet says spending from wars and tax cuts was essentially the U.S. lighting “money on fire.”

• Joe Biden (Former vice president)

Biden’s top concern is less about reshaping America and more about returning America to “normalcy.” He argues that if President Trump gets another four years, the DNA of the country will be fundamentally altered.

• Pete Buttigieg (Mayor of South Bend, Ind.)

The 37-year-old is making a generational-change argument. He argues for progressive processes — like fixing redistricting and voting rights — in addition to policies — like being more cautious on war and more progressive on climate change and health care.

• Kirsten Gillibrand (Senator from New York)

She’s focused on women’s rights, especially when it comes to health care. She boasts that a Fox host called her “not very polite” for speaking out about the “nationwide assault on women’s reproductive freedoms” and “fundamental human rights for women.”

• Kamala Harris (Senator from California)

Harris’ slogan is “for the people,” and she’s making the case that President Trump is a “fraud.” The former prosecutor says Trump is fighting for the wrong people — the powerful and wealthy — while she wants to “advocate for the voiceless and vulnerable.”

• John Hickenlooper (Former governor of Colorado)

The centrist has a pragmatic message. He says pragmatists aren’t against big things; they know how to get them done. He has also spoken out against Democrats’ lurch toward socialism, warning that moving in that direction would reelect President Trump.

• Bernie Sanders (Senator from Vermont)

Sanders wants to beat President Trump, but he believes the way to do it is not with “middle-ground” approaches, but with promising wholesale progressive change. He’s the only candidate willing to wear the (democratic) socialist label.

• Eric Swalwell (Representative from California’s 15th District)

He has focused his campaign on ending gun violence in the country, targeting semiautomatic assault weapons in particular by calling for a mandatory national ban and buyback.

• Marianne Williamson (Spiritual guru, entrepreneur)

The New Age author is campaigning with a philosophy of “Think. Love. Participate.” As an outsider to politics, she believes change needs to come from the outside and that “half-truth tellers” can’t beat President Trump.

• Andrew Yang (Founder of Venture for America)

The startup investor is running on a data-first approach to the presidency. His big idea is to address the threat of automation with a Universal Basic Income, in which every adult would get $1,000 a month.

The Rules:

Candidates will have 60 seconds to answer questions and 30 seconds to respond to follow-ups. No opening statements, though candidates will have a chance to deliver closing remarks.
Five segments each night separated by four commercial breaks.

The Analysis:

NPR has 7 questions of their 8 for the debates which apply to today's debate:

Will Biden stand up to the scrutiny?
Is the debate an opportunity or danger zone for Bernie Sanders?
Can Harris and Buttigieg stand out?
Do the pragmatists or progressives win out?
How much of a focus is Trump?
How will foreign policy factor in?
Who will stick in voters' minds?

other pre-debate analysis pieces that may be pertinent to you:

• NBC News: On Night Two, all eyes — and jabs — will be on Biden
• Vox: What to expect at the first Democratic presidential debate
• the Guardian: Democrats prepare for first showdown as 2020 debates loom
• from POLITICO: Inside the top matchups in the 2020 Democratic debates