Article II, Section 1, Clause 7 of our Constitution: [View all]

"The President shall, at stated Times, receive for his Services, a Compensation, which shall neither be encreased nor diminished during the Period for which he shall have been elected, and he shall not receive within that Period any other Emolument from the United States, or any of them."

It's pretty clear what our Constitution says. His compensation cannot be increased or diminished during his term of office.

Article I, Section 7, Clause 1 states:

“All Bills for raising Revenue shall originate in the House of Representatives; but the Senate may propose or concur with amendments as on other Bills.”

Article 1, Section 9, Clause 7 states:

“No Money shall be drawn from the Treasury, but in Consequence of Appropriations made by Law; and a regular Statement and Account of the Receipts and Expenditures of all public Money shall be published from time to time.”

The Constitution is pretty clear. We can follow it or we can wipe our ass with it.