Ninety state officials urged President Trump and Congress to tackle the national debt crisis in a Thursday letter — warning of “a painful age of reckoning” if nothing is done, The Post has learned.

State treasurers and lawmakers from states including Arizona, Pennsylvania and Texas, as well as Indiana Gov. Mike Braun, noted in the missive that the national debt already tops $38 trillion. 

The letter demanded that Trump and members of Congress approve a plan by July 4, 2026 — the nation’s 250th anniversary — to put the federal government on track to reach a balanced budget.

“Without a decisive change in course, we will not only face a very painful day of reckoning, but a painful age of reckoning we never want to see,” the officials, mostly from red states, wrote in the letter, a copy of which was obtained by The Post.