[Uncle Chip]

What makes Obama different from all those other Presidential contenders whose citizenship wasn't questioned in the same fashion?

Because O bama's father was not a citizen of the United States, and according to the definition of "natural born citizen" used by the First Congress in 1990 through to Senate resolution SR511 of 2008, a natural born citizen of the United States must have U.S citizen parents.

The evidence that he is not eligible to hold the office is already in the public domain.

[curiosity]

The evidence that he is not eligible to hold the office is already in the public domain.

Then why all the fuss about the birth certificate, college records, kindergarden records, etc?