With slim majorities in the House and Senate, Democratic lawmakers have a prime opportunity to get their pet projects passed thanks to President Joe Biden’s $2 trillion “infrastructure plan.” And it’s an opportunity that Rep. Tom Suozzi of New York isn’t passing up. He’s threatening to vote against the bill unless Democrats accept his demand to pass a tax break that would benefit the wealthiest taxpayers while making the rest of the country pick up the bill.

Suozzi wants the full state and local tax deduction included in the president’s infrastructure bill. The SALT deduction allows wealthy people who itemize their deductions to write off their state and local taxes, primarily their property taxes, from their federal income taxes. The deduction is currently capped at $10,000, thanks to the 2017 tax law.