They aren’t enthusiastic about all tax cuts.

[I]t is true that cutting income tax rates has lost some of its political punch now that nearly half of all Americans pay no income taxes at all. This is due in part to the victory of cultural conservatives who’ve pushed the child tax credit and want to use the tax code as social policy. We’ve been willing to accept such credits as the price of passing something in Washington. But they are no substitute for the pro-growth rate cuts most of these candidates are proposing.

Well, sure, a child credit is no substitute for rate cuts; and rate cuts aren’t a substitute for the child credit. Deregulation is no substitute for tax cuts, and tax cuts are no substitute for deregulation. So what? “Cultural conservatives” aren’t the only people who support the child credit, and the reason a lot of us support it is because the government overtaxes investments in children. Apparently that’s one type of overtaxation of investment that the Journal is happy with.