A sitting U.S. president who can’t stop attacking black and brown people. A never-ending trade war that has necessitated more than one multibillion-dollar farm bailout. A humanitarian crisis on the border of his own state. These are just a handful of the many issues that Senator Ted Cruz could be focused on. Instead, he’s currently devoting his efforts to a much more important cause: demanding another tax cut for the rich, this time without Congress’s approval.

In a letter sent to Steve Mnuchin on Monday, the senator from Texas urged the Treasury Secretary to use his “authority” to index capital gains to inflation, a move that would almost exclusively benefit the mega-rich. Claiming, falsely, that the United States economy “has experienced historic levels of growth as a result of Congress and the current administration’s policies such as the Tax Cuts and Jobs Act,” Cruz insists that it is now crucial for the Treasury Department to adjust capital gains for inflation “so that everyday Americans can continue to enjoy better lives and livelihoods.” And by “everyday Americans,” he of course means (but doesn’t say) the spectacularly wealthy.

Missing from Cruz’s call for Mnuchin to use “executive authority” to end this “unfair” treatment of taxpayers, which was signed by 20 of his Republican colleagues, is the fact that, according to the Penn Wharton Budget model, a whopping 86% of the benefit of indexing capital gains to inflation would go to the 1 percent (and reduce annual tax revenue by an estimated $102 billion over a decade). Perhaps seeking to address this criticism, Cruz claimed that changing how capital gains are taxed “would…unlock capital for investment, increase wages, create new jobs, and grow the economy, benefiting Americans across all income levels.” In other words, he’s arguing that the executive branch should give the super-rich another tax cut and it’ll benefit everyone because of trickle-down economics which—checks notes—has never actually worked. Including in the case of the 2017 Tax Cuts and Jobs Act.

In a sign of just how unpopular a tax cut for the rich sans Congressional approval would be, even Trump’s Treasury Secretary, née America’s Foreclosure King, reportedly isn’t into the idea:

Mnuchin, so far, has been hesitant to making the change, which Trump’s other top economic advisers support.

“Right now there’s no commitment to getting it done or not getting it done,” Mnuchin told Bloomberg News in an interview earlier this month. “It’s a policy that has been under consideration and remains under consideration.”

On the other hand, Trump has reportedly “told confidants...that he remains deeply invested in making the change,” and his National Economic Council chair, Larry Kudlow, has been pushing for it since he was hired. Also, as Bloomberg points out, “Trump is looking for issues to win favor with voters and donors during his 2020 reelection campaign,” so perhaps the rich will get another well-deserved break.