text:  Republican House Speaker Mike Johnson says perhaps Mr. Biden's cabinet should use the 25th Amendment and remove him from office for being incapacitated. I would ask the cabinet members to search their hearts. But CBS's Nancy Cordes has been speaking with sources about President Biden's political future. They say there are no conversations here at the White House or at the campaign about Biden bowing out. And they say he has every intention of appearing at the second and final presidential debate on September 10th.