Kamala Harris' exit sparks frantic scramble among former rivals to win over her supporters

The tweet announcing Kamala Harris' departure from the 2020 race had barely been posted when some of the California senator's one-time opponents in the crowded, competitive race for president began moving in.

New Jersey Sen. Cory Booker quickly began calling elected officials in Iowa who had previously backed Harris. Aides to South Bend, Indiana, Mayor Pete Buttigieg and Massachusetts Sen. Elizabeth Warren began reaching out to Harris staffers in Iowa and elsewhere to see if they were interested in joining their campaigns. And representatives for Buttigieg, Booker, former Vice President Joe Biden and Minnesota Sen. Amy Klobuchar began contacting Harris' precinct chairs in Iowa to see whether the plugged-in caucus operatives had considered their candidates.