History suggests he’s wrong.

Republican John E. Sununu represented New Hampshire in both the U.S. House and Senate before being defeated in his re-election bid for senator in 2008. His tenure in Congress was largely characterized by support for conservative policies — for example, he scored “100 percent on the Club [for Growth]’s 2005 Congressional Scoreboard” — but his 84 percent party-line voting record shows that he broke ranks on occasion.

Some of his voting wrinkles can be found in his stance on energy and environment policy, including, for example, his co-sponsorships of:

In case you were wondering, neither bill was enacted.

A new Sununu?

But that was then and this is now and even Republicans with perfect scores from the Club for Growth have found