Nevada, South Carolina present next challenges for 2020 Democrats

Candidates for the 2020 Democratic presidential nomination are moving toward southern and western states as more primary contests approach. Campaigns made stops in both Carolinas and in Texas, but the immediate priority is Nevada, whose caucuses will be held in just over a week, on February 22nd. The South Carolina primary follows -- and then it will be Super Tuesday. Lisa Desjardins reports. 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