Beto O'Rourke was unambiguous: "We must begin impeachment now."

Insisting that pursuing impeachment proceedings against President Trump was the "only way we save this country," O'Rourke said it was imperative to hold Trump accountable for the potential crimes outlined in former special counsel Robert Mueller's report.

"If we allow him to get away with this with impunity, then we will have set a new standard," O'Rourke said, adding that future generations of Americans should not believe that certain elected officials are "above the law."

Several candidates said this. While it's difficult to quantify how much of a threat it is relative to adversarial countries or global concerns, there's no denying that climate change is a significant threat to the U.S.

Even Trump's Pentagon says so: In a January 2019 report, the agency said weather events stemming from a “changing climate” create substantial problems for U.S. military mission effectiveness. Other top U.S. officials have warnedin recent months that climate change creates long-term threats to U.S. national security thanks to its impact on things like “trade routes, food and energy supplies, the global economy, and domestic stability abroad.”

How useful was it for Democratic candidates to answer some of their questions in Spanish in the debates?

Sonia Hernandez Hogeland, who was watching the debate at a watch party in San Antonio, thought at first it was “pandering.” But Hogeland, who describes herself as bilingual-ish, said after watching Cory Booker try to get his message across in Spanish, her opinion changed.

“I thought, ‘Listen Latinos! You’re important! Your voice is important to these people! I hope Latinos take heed and flex the muscles we have earned,” Hogeland said.

But in a recent poll conducted by Latino Decisions, 76 percent of the Latino eligible voters polled said they most wanted a candidate who values diversity and brings people together. Only 2 percent of the respondents thought that the ability to speak Spanish was the most important trait for a president. (The poll was commissioned by UnidosUS, the largest Latino civil rights and advocacy group.)

According to the Pew Research Center, 32 million Latinos will be eligible to vote in 2020.

Beto O'Rourke said Wednesday that the United States should be ready to intervene to protect citizens of other countries from genocide even if the direct interests of America are not at stake but only under certain circumstances.

"The answer is yes," he said. "But that action should always be undertaken with allies and partners and friends." In his answer, O'Rourke mentioned Russia.

But O'Rourke has been extremely reluctant in the past to challenge foreign leaders for lesser hostility.

When the House voted in 2014 to condemn Russia's Vladimir Putin for his aggression toward his neighbors — a resolution expressing the sense of the body that Putin was wrong but not requiring any military action — O'Rourke was one of 10 lawmakers to vote "no."

Klobuchar made a puzzling claim about how many bills Trump has signed into law as president for which she was the lead Democratic sponsor.

"In fact, Donald Trump, one of the first bills that he signed of the 34 of he signed where I was lead Democrat — OK, that’s a first up here — was one that was about that, making sure minority community members could share in those jobs," she said in response to a question about appealing to African American voters.

That 34 number does not appear to be true, though it could depend on what she means by "lead" Democrat. According to GovTrack, a legislation and vote tracking website for members of Congress and the Senate, there have been 33 bills enacted since Klobuchar was originally sworn in 2007 for which she was the sponsor. Only six of those were enacted after Trump was inaugurated on Jan. 20, 2017.

Julián Castro, answering a question about how the Democratic candidates can appeal to Latinx voters, said running on issues of economic justice isn't enough to earn the trust of people of color. He said Democrats need to press on issues of racial justice, too. He then decried police shootings of minorities across the country, loosely working from remarks he's used on the campaign trail.

Montana Gov. Steve Bullock did not qualify to be in this week's debates but he's tuned in:  

June is Pride Month. Ninety minutes into the debate and there has been no significant mention of the #LGBTQ community aside from a few words from @JulianCastro early on.