Chairing a committee is one thing. However, Grassley got elected to the Senate the same year that Reagan was first elected as POTUS, 1980. Being an institutionalist fits him considering how many decades he's been in Congress.

That said, Grassley also bankrolled the Iraq War from the beginning and did not provide one iota of accountability until after the 2006 midterms (like many of the wimpy Republicans). Quite honestly, he doesn't have a spine unless it's about Iowa and its energy.