Johnny Isakson OK after cracking three ribs in a fall

Sen. Johnny Isakson is recovering after cracking three ribs in a fall.

The Georgia Republican canceled a speaking appearance at a University of Georgia political science class next week after the injury. His chief of staff Joan Kirchner said the wound should heal in three weeks and that the worst side effect is pain when he coughs or laughs.

He's still on track to speak to the Bobby Dodd Institute next week and fly to Dallas to attend a fundraiser with Sen. Jon Cornyn, she said. He plans to return to Washington the week of April 13 when the Senate returns to session.

Isakson, 70, is running for a third term in the U.S. Senate. He faces at least one likely Republican challenger. Several Democratic contenders are also watching the race, though it's unclear whether a high-profile candidate would risk challenging Isakson.