This is still a rumor of some sort. Drudge is running it, so is MSNBC. CNN, AP, FOX and Reuters has not said anything.
It hasd been reported that Johnson was admitted to the hospital earlier today with "stroke-like symptoms", but no information has been released by GW Hospital.
This is the best article I can find right now on the subject.
http://www.keloland.com/NewsDetail6162.cfm?Id=0,53147
I hope no one makes this political, because it isn't.
Obviously, prayers are to be given to the Johnson family in this type of situation.
I wish him the best, but he is a Senator, so it is somewhat political - the control of the Senate could be at stake.