David Gergen, a veteran of Washington politics and an adviser to four presidents in a career spanning decades in government, academia and media, has died. He was 83.

Larry David made his grand exit from HBO last year after 12 seasons of “ Curb Your Enthusiasm ” across 24 years. He’s already back. David has signed on for a new HBO show in collaboration with former President Barack Obama and former first lady Michelle Obama.

The actor has a man-out-of-time quality that makes him surprisingly like his character. But he is hyperaware of the present expectations riding on his performance.