Six Democratic presidential candidates will debate Wednesday night in Nevada, with a new face joining onstage. Michael Bloomberg will participate for the first time this primary cycle, as scrutiny over his record intensifies. Lisa Desjardins reports on the candidate's efforts to appeal to minority voters ahead of the Nevada caucuses, and Judy Woodruff talks polling with NPR’s Domenico Montanaro. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Snapchat: @pbsnews Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe