Washington State Attorney General Bob Ferguson joined Gov. Jay Inslee this week in warning President Donald Trump that Washington state would challenge in court Trump’s proposed repeal of the Deferred Action for Childhood Arrivals (DACA) program.

Ferguson, who previously challenged Trump’s immigration ban in court and won, issued a statement Monday following news reports that Trump would announce an end to the DACA program.

“If President Trump follows through on his reported decision to cancel DACA after a six-month delay, the Washington Attorney General’s Office will file suit to halt this cruel and illegal policy and defend DACA recipients,” Ferguson said. “We have been working closely with legal teams around the country, and we expect to be joined by other states in this action.

“As Attorney General, I will use all the legal tools at my disposal to defend the thousands of Dreamers in Washington state.”

In a letter sent to the president in July, Ferguson joined with 19 other attorneys general urging President Trump to continue the DACA program, and promised then to defend the program in court if necessary.