turns out that the real Mavericks are some badass progressives:
Considering the family’s long history of association with liberalism and progressive ideals, it should come as no surprise that Ms. Maverick insists that John McCain, who has voted so often with his party, “is in no way a maverick, in uppercase or lowercase.”
“It’s just incredible — the nerve! — to suggest that he’s not part of that Republican herd. Every time we hear it, all my children and I and all my family shrink a little and say, ‘Oh, my God, he said it again.’ ”
“He’s a Republican,” she said. “He’s branded.”
read the whole article for some neato etymology.