Get well soon, Tim Johnson. Oof, talk about terrible news on several levels. One hopes the Senator will make a full and complete recovery after his AVM surgery, and we won’t have to think too deeply about the possibility of a Senate turnover. Fortunately, there seems to be a good deal of precedent for long absences from the chamber — my first thought (other than Nate Fisher and Narm!) was Charles Sumner’s three-year absence after the caning, but there are apparently many 20th century examples too.