Paul Ryan says ‘nobody knows’ if the tax bill will blow up the deficit. Economists beg to differ.

Though he never deserved the reputation, House Speaker Paul Ryan (R-WI) is known as a deficit hawk. And yet the tax cut bill he helped shepherd through Congress is projected to add at least $1.414 trillion to the federal deficit over the next decade.

During a Wednesday morning appearance on NBC’s Today, Ryan was asked how he, as someone who is supposedly concerned about the deficit, can support a bill that will blow it up.

“I remember you in 2012 doing ev...