An update on Sen.

An update on Sen. Johnson’s (D-SD) condition form the Argus-Leader, the major South Dakota paper.

Here’s WaPo’s update.

A number of you have written in to note, correctly, that control of the senate hinges on Sen. Johnson’s ability to serve in the 110th Congress. Were he unable to do so, South Dakota’s Republican governor would appoint a Republican and control would go to the Republicans — a 50 – 50 tie with the tie break from Cheney. That’s all we’re going to say about that point until we get some definitive word on Johnson’s condition.

If we hear more on the senator’s condition, we’ll bring it to you.

Late Update: The only available information that sheds any light on Johnson’s condition is contained in these three grafs from MSNBC …

Johnson became disoriented during a call with reporters at midday, stuttering in response to a question. He appeared to recover, asking if there were any additional questions before ending the call.

Johnson spokeswoman Julianne Fisher said he had walked back to his Capitol office after the call with reporters but appeared to not be feeling well. The Capitol physician was called and Johnson was taken by ambulance to the George Washington Univeristy Hospital in D.C. for evaluation.

A statement released by Johnson’s office said, “Senator Tim Johnson was taken to George Washington University Hospital this afternoon suffering from a possible stroke. As this stage, he is undergoing a comprehensive evaluation by the stroke team. Further details will be forthcoming when more is known.”

Later Update: Roll Call reports that Johnson was conscious when he was taken to the hospital.