There should have been a one-time bump in the deficit, as the stimulus money was spent, and then the next year, spending should have dropped off.
But they have managed to keep it up at that level, without any further stimuli being passed...
Where the federal budget is concerned...its baseline has now been increased by the stimulus money. So now it's in the budget EVERY YEAR. From now on. Rush Limbaugh explains it better than I can here: