Ah, poor guy. It's his right shoulder too, and he's had all those hands to shake and still has all those hands left to shake. God forbid he should wince or look at all unenthusiastic when engaging physically with the crowds. And then when one thing goes wrong, it creates opportunities to tie to other things, as the Times reports:
Some campaign aides were concerned about scheduling the surgery, which is elective, because they feared it would ... revive memories of Mr. Kerry's struggle with prostate cancer last year, though it is unrelated.
When he went on vacation earlier this month, some Democrats suggested that Mr. Kerry was leaving himself vulnerable to negative portrayals in President Bush's television advertisements while Mr. Kerry was still relatively unknown to many voters, and the break for surgery presents a similar risk.
As if the "vacation" wasn't part of the campaign. And of course any damn thing a candidate does is "vulnerable to negative portrayals." But I'm particularly tired of the subject of the health of the candidates. Somehow I don't think the Democrats are going to pass up the opportunity to bring up the topic of Cheney's heart or whatever such topic presents itself for "negative portrayal."