Paul Ryan's Middle-Class Tax Hike

In Paul Ryan's budget roadmap, he lays out a "goal" of reducing the top tax rate from 39.6 percent to 25 percent. That's a big tax cut for the rich! Is it possible to do this while (a) keeping total tax revenue the same and (b) not raising taxes on the middle class to make up for it? You may recall that we had this argument during the 2012 campaign, when Mitt Romney insisted he could do this by closing various loopholes but refused to say which loopholes he would close. That didn't stop America'...