Democrats on Wednesday completed a sweep of the two US Senate seats up for grabs in runoff elections in Georgia, giving the party control of the chamber and boosting the prospects for President-elect Joe Biden's legislative agenda.

Raphael Warnock, a Baptist preacher from Martin Luther King Jr's former church, beat Republican incumbent Kelly Loeffler to become the first Black senator in the deep South state's history while Democrat Jon Ossoff, a documentary filmmaker who at 33 will be the Senate's youngest member, beat Republican David Perdue.