U.S. warns Russia could be preparing to invade Ukraine
U.S. intelligence officials are warning that Russia could invade Ukraine as soon as January. President Biden is scheduled to speak with Russian President Vladimir Putin on Tuesday. CBS News intelligence and national security reporter Olivia Gazis joins Elaine Quijano on "Red and Blue" with more on the tensions.
Former Senator David Perdue enters Georgia governor's race
Former Georgia GOP Senator David Perdue announced he's running for governor against Republican incumbent Brian Kemp. Perdue has support from former President Trump. Greg Bluestein, a political reporter at the Atlanta Journal Constitution, joins CBSN's "Red & Blue" anchor Elaine Quijano with more.
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New U.S. international travel restrictions take effect; Scientists racing to learn more about Omicron variant