This data is from the Congressional Budget Office and the Center on Budget and Policy Priorities. Its significance is not partisan (who's "to blame" for the deficit) but intellectual. It demonstrates the utter incoherence of being very concerned about a structural federal deficit but ruling out of consideration the policy that was largest single contributor to that deficit, namely the Bush-era tax cuts.
and THIS is WHAT CAUSED our Deficit in a GRAPH so ALL can see and understand.