Now playing Next USA South Carolina Democratic debate live updates: Candidates face off in Charleston The 10th Democratic debate will be the last before the nominating contests in South Carolina on Saturday and 14 other states on Super Tuesday. 25/02/2020
Now playing Next No Comment On a frozen Siberian lake, festival-goers mark the Lunar New Year Dancers perform the Yokhor, a traditional circle dance. 25/02/2020
Now playing Next USA Hotel on Spanish vacation island locked down after guest tests positive for coronavirus Rebecca Lunt, who is staying at the hotel, told NBC News via Facebook messenger that guests were not being allowed to leave. 25/02/2020
Now playing Next USA Opera singer Placido Domingo apologises after sex harrassment claims Placido Domingo's apology came hours before a US opera union found him guilty of "inappropriate activity, ranging from flirtation to sexual advances". 25/02/2020
Now playing Next Spain Watch: Tourist speaks about life under lockdown at Tenerife hotel Harriet spoke to us from a Tenerife hotel on lockdown after a guest tested positive for COVID-19 coronavirus 25/02/2020
Now playing Next USA Some candidates do better than the polls and others worse. We break it down. The NBC Decision Desk analyzed dozens of surveys taken before votes in the early 2020 primary states. 24/02/2020
Now playing Next USA The 10th Democratic presidential debate: Everything you need to know The lineup for the South Carolina debate will again include Mike Bloomberg, who will try to rebound from his widely panned performance in Las Vegas. 24/02/2020
Now playing Next USA Florida lawmakers lash out at Sanders' latest Castro praise The criticism followed a new interview in which the Vermont senator defended positive remarks he had made in the 1980s about some of Fidel Castro's policies. 24/02/2020
Now playing Next USA Weinstein guilty of rape: How victims 'changed the course of history' Weinstein, 67, was immediately handcuffed and led off to jail, sealing his fall from powerful Hollywood boss to archvillain of the #MeToo movement. 24/02/2020
Now playing Next Cult Sebastião Salgado: world-famous photographer's Genesis exhibition comes to Lyon Genesis is a photographic tribute to the planet comprising more than 200 black and white photographs. It's the result of eight years work and some thirty trips around the world 24/02/2020
Now playing Next USA South Carolina is Biden's last chance to stop Bernie Sanders First Read is your briefing from "Meet the Press" and the NBC Political Unit on the day's most important political stories and why they matter. 24/02/2020
Now playing Next USA Biden to grab second in Nevada, above threshhold to win delegates, NBC projects Biden is likely to receive some delegates based on his statewide vote total, but Pete Buttigieg remained beneath the 15 percent threshold. 24/02/2020
Now playing Next USA Warren finally took on Sanders, but it may be too late The progressive candidate waited until the past week to directly make the case against her chief progressive rival. Some Democrats wonder what took her so long. 23/02/2020
Now playing Next USA National security adviser says he's seen 'no evidence' Russia backing Trump, contradicting intelligence community Intelligence officials briefed members of Congress earlier this month that Russia was interfering in the 2020 campaign to try and boost Trump's re-election chances. 23/02/2020
Now playing Next No Comment Brazil revellers get muddy at 'Bloco da Lama' carnival party Revellers apply mud on their body and dance in smoke in mud carnival party "Bloco da Lama" near Rio de Janeiro. 23/02/2020
Now playing Next USA Unstoppable? Bernie Sanders heads into South Carolina stronger than ever After winning Nevada, the Vermont senator is riding a wave of votes, delegates and momentum into the next contest. 23/02/2020
Now playing Next USA Colombia was the deadliest place on Earth for environmental activists. It's gotten worse. More than 40 human rights defenders and community leaders have been killed in Colombia since January, according to Indepaz, a Colombian peace-building nonprofit. 23/02/2020