Chuck Grassley actually said...

you must enforce and defend these laws, regardless of your personal views, and I believe you must do so vigorously.

Section 2 of the Defense of Marriage Act permits States to choose whether or not to recognize same-sex marriages from other States.

You do not get to pick and choose which statutes to defend.

I have always appreciated your candor and your willingness to work with us to get answers even if we do not always agree.