An Independent Voice in Washington?

Scott Brown is on a three day tour of Massachusetts to thank voters for his dramatic victory last week.  Interestingly, although Republicans all over the country are talking about him, he does not talk much about Republicans.  Instead, he says his goal is to assure voters that he will be "an independent voice in Washington.”  I find that encouraging.  But it caused me to wonder:  given such talk of being independent, I wonder whether he might choose to become one?  Senators Bernie Sanders of Vermont and Joe Lieberman of Connecticut have shunned both political parties to become the two Independents in the Senate.  If Senator-elect Brown truly aspires to be the independent voice he claims, might he do the same?