How 2020 candidates see their path to victory, starting in Iowa

With four weeks to go until the Iowa caucuses, Democratic candidates are in the state campaigning for the first nominating contest of the 2020 election. Stephen Gruber-Miller, who covers the statehouse and politics for the Des Moines Register, spoke to CBSN’s “Red & Blue” about what the candidates are doing to win support on February 3rd. Source