White House officials and Republican lawmakers have repeatedly claimed that their tax plan will unleash such tremendous growth that the bill will pay for itself.
Of course, no one remotely credible backs this up. Not the Tax Policy Center, not the Tax Foundation (which uses relatively rosy assumptions about growth), not the Penn Wharton Budget Model, not Goldman Sachs, not the usual gang of Republican economists.
Not even the Joint Committee on Taxation, Congress’ nonpartisan internal scorekeepers on such matters, has found that the bill would be self-financing. Its most recently available analyses determined that even after accounting for economic effects, both the Senate and House bills would still cost about $1 trillion over the coming decade.