Democrats talk healthcare, climate change in Nevada debate

Democratic presidential candidates laid out their plans for the future of healthcare and climate action in America during a debate in Nevada on Wednesday. A field of six -- Vermont Sen. Bernie Sanders; former South Bend, Ind., Mayor Pete Buttigieg; Massachusetts Sen. Elizabeth Warren; Minnesota Sen. Amy Klobuchar; former Vice President Joe Biden and former New York City Mayor Michael Bloomberg -- faced off ahead of the state's caucus on Saturday.