All government spending comes directly from taxes.
Explanation:
The chief way the government gets the money it spends is through taxation. ... Since half of Social Security and Medicare taxes come directly out of people's paychecks, about 65 percent of taxes the federal government collects come from individuals. Thirty-two percent of taxes come to the government from corporations
The Supreme Court has a power called "judicial review". What this means is that the Supreme Court can take a law and interpret it. They can decide whether a law violates the Constitution or not. And if it is indeed unconstitutional, they can strike that law down.