Help me out here

 A tweet published by @POTUS this morning read:

I propose a minimum tax of 25% for billionaires. 

Just 25%. 

That would raise $500 billion over the next 10 years. 

Imagine what that could do for America.

OK, imagining.

Regarding current budget negotiations in Congress, the AP reported a couple of days ago:

In the end, total discretionary spending set by Congress is expected to come in at about $1.66 trillion for the full entire year.

Look. I don't have an answer for this. I'm merely asking a question.

Has there ever been an entire year that wasn't full?