Correspondent Ed O’Keefe reports on former Vice President Joe Biden’s big win in the South Carolina primary Saturday, and looks ahead to a “Super-sized” Tuesday in the presidential primary. Source

Hamilton, Missouri was like a lot of small towns with its best days behind it, before Doan and her family (who’d been through rough patches themselves) opened a quilting store, and launched her new career as a YouTube quilting celebrity Source

On March 1, 1873, the Remington company produced a typewriter with the now-familiar “QWERTY” keyboard Source

Dr. Jon LaPook with the latest information about the virus and how to protect yourself and others Source

“We’ve just won, and we’ve won big because of you,” Biden said to his supporters. Source

“All this fire didn’t happen,” one farmer said, despite all the evidence to the contrary. Source

A teenager learns she’s the target of a hit ordered on the dark web. “48 Hours”‘ Peter Van Sant goes on a global manhunt to find Yura, the shadowy figure behind murder-for-hire sites. Source

A teen learns she’s the target of a hit ordered on the dark web — “48 Hours” goes on a global manhunt to find the shadowy figure behind murder-for-hire sites. Source

Vermont Senator Bernie Sanders held a rally in Virginia on Saturday. Democrats there will head to the polls in just three days. California congressman Ro Khanna is a national co-chair for Sanders’ presidential campaign. He joins CBSN with the latest on Sanders’ strategy going into Super Tuesday. Source

Joe Biden is projected to win in South Carolina. POLITICO National Correspondent Natasha Korecki joined CBSN from the former vice president’s win party in Charleston. Source