A lot of excitement today for two men in ill health. Byrd appears to be okay, Kennedy … less so. Stand by for updates.

Update: CBS confirms that it was a seizure and said Byrd was taken out because of his emotion over Kennedy.

Update: Early indications are that it’s not bad as feared. ABC updates:

In an interview with ABC’s Jonathan Karl, Sen. Orrin Hatch, R-Utah, said Kennedy was talking as he was taken out on a stretcher to the ambulance. Sen. Chris Dodd, D-Conn., a very close friend of Kennedy’s, could be seen laughing as Kennedy’s stretcher was put into the ambulance — a good sign.