How did Republican leaders reconcile their purported deep concern about budget deficits with their advocacy of large tax cuts? Was it that old voodoo economics — the belief, refuted by study after study, that tax cuts pay for themselves — making a comeback? No, it was something new and worse.
To be sure, there were renewed claims that tax cuts lead to higher revenue. But 2010 marked the emergence of a new, even more profound level of magical thinking: the belief that deficits created by tax cuts just don’t matter.