"Anchor babies" are at the very heart of the the "Natural Born Citizen" controversy, so efficiently swept under the MSM rug.
Rather than an "NBC" being defined as the child of two citizens, an all-out effort is being made to include any "native born" person in the POTUS-eligible category. The Electoral College vote for Obama was nothing less than a de facto Constitutional amendment.
If the various affidavits offered the states' attorneys-general when his name was placed on the ballot were defective and/or false, then one would think the vote would be void.
But as another FReeper or two have been pointing out, there is a statutory gap in terms of enforcing a cure. It's an area of the Constitution that the 'Rats can exploit because there's no organic law, other than the Constitution itself, to protect the People's interest and punish malefactors.