President Obama took his State of the Union call for tackling income inequality on the road Wednesday with a speech at an assembly plant in Iowa. Obama repeated his proposal for the so-called Buffett tax to ensure millionaires pay at least 30 percent.

President Obama: “If we do that and we make some smart cuts in other areas, we can get this deficit and debt under control and still be making the investments we need to grow the economy. Now, a lot of—now, I hear folks running around calling this class warfare. This is not class warfare. Let me tell you something: asking a billionaire to pay at least as much as his secretary, that’s just common sense.”

On the Republican side, the wealthiest candidate in the race, Mitt Romney, criticized President Obama’s State of the Union address while campaigning in Florida.

Mitt Romney: “He said last night how well things are going. If you really think that things are going well in this country, that we’re on the right track and that his policies are working, you ought to vote for him. But I think, on that basis, if we ask the American people if they think things are going well or not so well, and he wants to get the votes of those who think it’s going well, he’s not going to be president very long.”