The latest craze in conservative circles is to see who can heap the most praise on the tax reform plan that Republican Senators Mike Lee and Marco Rubio released earlier this month.

Bloomberg’s Ramesh Ponnuru called it “the most pro-growth tax reform since Calvin Coolidge’s presidency.” Veronique de Rugy gushed in the National Review that “it’s just about impossible not to be happy with the plan.” The Mercatus Center’s Scott Sumner even went so far as to argue that, if enacted, the Lee-Rubio plan would “easily be the best thing the Federal government has done since the civil rights laws of the 1960s.” And they were far from alone in their enthusiasm.

Insofar as those on the Right quibble with the plan at all, they object to the so-called “reformocon” elements of the proposal, like the increases in the child tax credit and the maintenance of graduated income tax rates (instead of flat rates or a national consumption tax).