Ah, the plot thickens.

U.S. Sen. Johnny Isakson held a meeting with [his] staff this morning and told them he’s decided to seek another term in the U.S. Senate rather than run for governor in 2010.

Lt. Gov. Casey Cagle likely would have sat out the 2010 governor’s race if Isakson had run. With Isakson out, that leaves insurance commissioner John Oxendine as the only declared candidate (that I know of, at least). While formidable, he’s not the near-lock for the nomination that Isakson would have been.

That should make for good theater in next year’s session. We might get to see Glenn Richardson’s mean streak!