Democrats are eager to ramp up a corporate welfare agency and load it up with some lefty mandates. That’s no surprise. What’s inexplicable is that at least one powerful Republican is going along with them. This is a mistake, and GOP lawmakers should do what they can to stop the plan.

At stake is the Export-Import Bank, a federal agency that subsidizes U.S. exports, and which Donald Trump called corporate welfare in 2016. The Ex-Im Bank’s charter expires in September. House Financial Services Chairwoman Maxine Waters, D-Calif., has drafted a bill that would expand the Ex-Im Bank, rename it, free it from oversight, and charge it with a handful of irrelevant liberal mandates. The committee’s top Republican, Rep. Patrick McHenry, R-N.C., has unfortunately agreed to Waters’ bill.