Dynamic scoring, the process where Congress has declared that we are always at an above ideal tax rate by increasing the economic multiplier for tax cuts carte blanche. This inherently skews the math used to prepare budgets to favor tax cuts by building in unproven assumptions about behavior of the beneficiaries of tax cuts. The rules enacted by Congress are so bad that New York Magazine said it was an act to "Declare War on Math".
We should expect better from Congress than choosing to lie to us on the opening act. There is substantial disagreement about what an 'ideal' tax rate is among economists. Why should politicians get to decide how much impact each tax act has? Shouldn't this be a non-partisan issue? Shouldn't it be tied to GDP, as it was previously? Repeal dynamic scoring!