"Here we are, weeks in, and you're still unable to proffer me any information with regard to any kind of investigation or malfeasance," U.S. District Judge Tanya Chutkan said.
The cuts, if carried through, would politicize the federal funds that Congress and the Biden administration awarded to seven regional applicants as part of the bipartisan infrastructure law.
The controversy over $20 billion of climate grants is stalling projects across the country and could force cancellation of projects designed to help people lower their energy costs.
Oil and gas executives were big backers of the Republican president and his "energy dominance" message, but the trade fights he's picked are driving up their costs and threatening to undermine the economy.
The move comes just one day before a federal judge will hold a hearing in a lawsuit brought by one of the grant recipients seeking access to the funds the Trump administration had frozen while it probed the program.
Lawmakers are expected to start the difficult task this week of determining which of the credits are on the chopping block to help pay for the GOP's budget bill.
The Greenhouse Gas Reduction Fund is at the center of a fight between the Trump administration and environmental groups seeking access to the funds that Congress approved under its massive climate legislation.