Biden’s Tax Math for $4 Trillion Runs Into Congress Scorekeepers

The Biden administration’s $4 trillion economic agenda is at risk of getting tangled up in the calculations of Congress’s budget scorekeepers.

Where the Treasury Department sees improved tax collection generating $700 billion in new revenue over a decade to help pay for programs, the Congressional Budget Office’s guidelines and own estimates may result in the legislative agency projecting nowhere near that.

And while that gap may seem modest by the gargantuan numbers of Washington spending, it threatens a host of political difficulties, not least of which is making it harder for the White House to pass the plan without the ...