Senator John Edwards has also dropped out of the race.
He said he was going to stick with it until Tsunami Tuesday next week -- when most of the South, his primary base, would vote -- but apparently the poor showing in South Carolina put him over the edge.
So now it's pretty much two two-person races. (Yes, Huckabee's still in the Republican race, but likely not for much longer.) And neither McCain nor Romney nor Clinton nor Obama are running away with anything.
Tuesday's gonna be fun to watch....