With the battle between Democrat Bill Owens and third-party insurgent candidate Doug Hoffman within the margin of error, Hoffman should have picked off the bulk of the Republican vote from Scozzafava's remaining core group of supporters, and that should have been the ball game.

Few people suspected that in an historically Republican district, Owens could survive without split opposition.

But, then, by virtue of his own gracelessness, Doug Hoffman complicated matters...for himself. [...]

To give a succinct recap: Owens praised Scozzafava and promised to work for upstate New York. Hoffman cackled a quick "I told you so" before returning on the attack.

That might explain why a large number of Scozzafava supporters, from the head of the state's Independence Party to several voices within organized labor, immediately turned to the Democrat Owens rather than her fellow Republican, Hoffman. This morning, one of the more prominent newspapers in the district, The Watertown Daily Times, followed suit, switching its endorsement from Scozzafava to Owens.

And then, in the second shocker from her in as many days, the Republican nominee endorsed the Democratic nominee. [...]

In the final analysis, it might not matter, of course. Owens is still fighting upstream in a GOP district against what is now for all intents and purposes a single GOP opponent. But Hoffman's own lack of class might have made this a lot of harder on him than it could have been.