Which is the more redistributionist of our two parties? In recent decades, as Republicans have devoted themselves with laser-like intensity to redistributing America's wealth and income upward, the evidence suggests the answer is the GOP.
The most obvious way that Republicans have robbed from the middle to give to the rich has been the changes they wrought in the tax code - reducing income taxes for the wealthy in the Reagan and George W. Bush tax cuts, and cutting the tax rate on capital gains to less than half the rate on the top income of upper-middle-class employees.
The less widely understood way that Republicans have helped redistribute wealth to the already wealthy is by changing the rules. Markets don't function without rules, and the rules that Republican policymakers have made since Ronald Reagan became president have consistently depressed the share of the nation's income that the middle class can claim.
Part of the intellectual sleight-of-hand that Republicans employ in discussions of redistribution is to reserve that term solely for government intervention in the market that redistributes income downward. But markets redistribute wealth continuously. In recent decades, markets have redistributed wealth from manufacturing to finance, from Main Street to Wall Street, from workers to shareholders. Rules made by "pro-market" governments (including those of "pro-market" Democrats) have enabled these epochal shifts. Free trade with China helped hollow out manufacturing; the failure to regulate finance enabled Wall Street to swell; the opposition to labor's efforts to reestablish an even playing field during organizing campaigns has all but eliminated collective bargaining in the private sector.