Right?
Keep in mind that Grover Norquist actually has a bigger agenda than his tax pledge:
"Every time you cut programs, you take away a person who has a vested interest in high taxes and you put him on the tax rolls and make him a taxpayer. A farmer on subsidies is part welfare bum, whereas a free-market farmer is a small businessman with a gun."
"My goal is to cut government in half in twenty-five years, to get it down to the size where we can drown it in the bathtub."
"We want to reduce the size of government in half as a percentage of GNP over the next 25 years. We want to reduce the number of people depending on government so there is more autonomy and more free citizens."
Would he give up his role as tax enforcer in order to make the Democrats enact the biggest and most unpopular cuts to the safety net in history? I don't know. But if you don't think it's at least possible then you don't really understand Norquist's goals.