Apparently not. And Terrellita Maverick has the family tree to prove it. From Electoral-vote.com:
No! says Terrellita Maverick, a descendant of Samuel Augustus Maverick, who went to Texas in the 1800s and became famous for not branding his cattle, which led to unbranded cattle being called "mavericks." The Maverick family has been active in progressive politics for generations, including Fontaine Maury Maverick, who was a congressman and his son, a firebrand lawyer who defended draft resisters. The Mavericks object strenuously to McCain's being labeled a maverick, saying: "He's a Republican. He's branded." Thanks for Debbie Scherrer for the pointer.
