Paul Krugman: Cranking Up for 2016

Scott Walker, the governor of Wisconsin, is said to be a rising contender for the Republican presidential nomination. So, on Wednesday, he did what, these days, any ambitious Republican must, and pledged allegiance to charlatans and cranks.

For those unfamiliar with the phrase, “charlatans and cranks” is associated with N. Gregory Mankiw, a professor at Harvard who served for a time as George W. Bush’s chief economic adviser. In the first edition of his best-selling economics textbook, Mr. Mankiw used those words to ridicule “supply-siders” who promised that tax cuts would have such magic effects on the economy that deficits would go down, not up.