[I]s the sacrifice of 58,000 Americans worth a bad Yankee team?

The answer is obviously yes.

This is a question that could tear apart the nation... Red Sox Nation, that is. 

More here.  I really don't think this is anything more than a coincidence, and I certainly don't agree with the blogger's estimation of Lyndon Johnson. 

Still, if one wanted to develop a completely unsubstantiated hypothesis, however, one could posit that the explanation for this correlation is that under a GOP president, the mercurial owner of the Yankees faced fewer contraints to royally f**k up interfere in the management of the team, resulting in some spectacular flame-outs on the diamond. 

It's not true, of course, but it's a more entertaining urban myth than Obama's citizenship status or Bush's role in the 9/11 attacks.