Soem info on the Impoundment Act:
“What is the Impoundment Control Act?
The Congressional Budget and Impoundment Control Act of 1974 (ICA) reasserted Congress’ power of the purse. Specifically, Title X of the Act – “Impoundment Control” – established procedures to prevent the President and other government officials from unilaterally substituting their own funding decisions for those of the Congress. The Act also created the House and Senate Budget Committees and the Congressional Budget Office.”
https://budget.house.gov/publications/report/impoundment-control-act-1974-what-it-why-does-it-matter
It’s filibuster proof if the flippant procedure even reaches that point, lol. Individuals getting excited over this are easy marQks