Pennsylvania Gov. Josh Shapiro is suing agencies under President Donald Trump, saying they are illegally and unconstitutionally withholding billions in federal aid from the state that had already been approved by Congress.

Gov. Josh Shapiro took the rare step on Thursday of suing President Donald Trump’s administration over its alleged failure to disburse more than $2 billion in federal funds to Pennsylvania, calling the move illegal and unconstitutional in the wake of a federal court ordering the White House to restore the funding.

The governor says the president's executive orders are holding up money for environmental projects, with billions more at risk in coming years.