We have a multi trillion $ deficit. Does the prez. or the U.S. congress spend the money?

Question

We have a multi trillion $ deficit. Does the prez. or the U.S. congress spend the money?

Answer 1

We all do, in our own little way.

Answer 2

congress writes the checks, and the president signs it.

congress writes the budget and the bills that allocate the money, and the president either signs the bill, or vetos it.  so they are technically both to blame.