Good points on the constitutional questions, but there are also political questions that will be brought up as these states continue to pass legislation requiring proof.
If Obama challenges these state laws, it will again bring the spotlight of public attention upon the very issue he wants to avoid, the fact that he refuses to meet a simple requirement to produce his long form birth certificate. As it gets closer and closer to the 2012 election, how much political damage will be done in the public’s mind that Obama is indeed hiding something.
Maybe enough to sway 3-5% of the voting public, and that could turn out to be devastating for Obama.
Whatever it takes to make sure he isn’t re-elected works for me.