What do you think? Leave a respectful comment.

WATCH: What’s the greatest threat to the U.S.? 2020 candidates weigh in

The 2020 Democratic presidential hopefuls have given a range of answers about what they see as the greatest threat facing the U.S., including China, climate change and President Donald Trump.

The most common answer at Wednesday’s debate was China, mentioned by Sen. Amy Klobuchar, ex-Housing and Urban Development Secretary Julián Castro, Ohio Rep. Tim Ryan and former Maryland Rep. John Delaney. New York City Mayor Bill de Blasio said Russia because the country “is trying to undermine our democracy.”

Massachusetts Sen. Elizabeth Warren, New Jersey Sen. Cory Booker and former Texas Rep. Beto O’Rourke said climate change. Washington Gov. Jay Inslee, who’s made climate change the emphasis of his campaign, pointed instead to Trump.

Rep. Tulsi Gabbard of Hawaii said nuclear war, which also got a mention from Delaney. Klobuchar also said Iran.

The Latest