Sanders is coming off a victory in New Hampshire​ and a lead in the popular vote in Iowa​. Source

The Smithsonian collection dates back to George Washington. Source

Japan, South Korea and Iran reported sharp spikes in coronavirus cases as the World Health Organization warned the window for stopping the epidemic is narrowing. Globally, nearly 78,000 people are infected and more than 2,300 have died. Debora Patta reports. Source

Three people were killed Saturday when a bus rolled over on a California interstate. The accident occurred in Fallbrook about an hour north of San Diego. More than a dozen people were injured. Marin Austin reports. Source

An Idaho mother whose children haven’t been seen since September remains behind bars Saturday. She was arrested in Hawaii. Police continue the investigation into the missing children. Jonathan Vigliotti reports. Source

In Dillon, Colorado, a seasonal attraction called Ice Castles draws visitors in search of a winter playground. The massive attraction uses about 10 million gallons of water and takes about eight weeks to build. Janet Shamlian reports. Source

President Trump is finally taking reports of Russian election meddling seriously – warning democrats “be careful of Russia” – but only as it pertains to possible Democratic opponent Bernie Sanders. Bofta Yimam reports. Source

Many of the Democratic presidential candidates didn’t stay in Nevada as voters caucused in the first-in-the-west contest Saturday. Most have already left and moved on to campaign in Super Tuesday states. Ed O’keefe has more on what’s ahead. Source

Senator Bernie Sanders jumped out to an early lead at Saturday’s Nevada caucuses – the first 2020 contest in a diverse state. Early entrance polls showed Sanders drawing much of his support from young, liberal Democrats. The rest of the field trails by a significant amount. Coming into Nevada, Pete Buttigieg has won the most national delegates, with Sanders close behind. Nikole Killion reports. Source

Here’s a look at the top stories making headlines on the “CBS Weekend News with Reena Ninan.” Source