I really don't believe this is a myth. I remember distinctly after 9/11 when the Prez went to Yankee Stadium, Rosie O'Donnell was there and EVEN SHE said (re: President Bush): "I love this guy."
I think there is a "Security Mom" vote out there.
That's interesting, considering Rosie O'Donnell funded the MOB's tv ad that played on CNN. You know MOB (Mothers w/O Brains!)