 CBS News Brief. Political earthquake in Britain. Today, power will change hands in a peaceful and orderly manner, with goodwill on all sides. Outgoing British Prime Minister Rishi Sunak acknowledging his Conservative Party's historic defeat to the left-leaning Labour Party. King Charles expected to formally name Labour leader Keir Starmer the new Prime Minister shortly. Another House Democrat calls for President Joe Biden to step down. Now is the time for him to follow in