This week in politics: Sen. Sinema announces party change, Georgia runoff comes to a close
This week in politics began with the Georgia runoff election, where Sen. Raphael Warnock claimed victory over Republican challenger Herschel Walker. But just days after Warnock gave Democrats the extra seat and a 51-49 advantage in the Senate, Arizona Sen. Kyrsten Sinema announced Friday she has switched her party affiliation, leaving the Democrats to be an independent.