 of Texas calls on President Joe Biden to drop out of the race. Vice President Kamala Harris tells CBS News that Biden is their nominee. CBS's Linda Kenyon at the White House. White House Press Secretary Karine Jean-Pierre says there's no doubt about it. I want to say we understand the concerns. We get it. The president did not have a great night. But she said one night does not reflect the entire presidency. And beyond that... He knows how to come back. He knows how to come back. And she said Biden's success proves he knows how to do the job.