Democrats mulling presidential runs in 2020, as well as labor and environmental groups, were already gearing up for a showdown with Trump over trade, and the revised North American Free Trade Agreement (NAFTA) will give them an opening for a new line of attack.

AFL-CIO President Richard Trumka on Friday called for a major rewrite of the deal signed in Argentina at the Group of 20 summit.

“As it stands, this agreement has not earned the support of America’s working families,” he said in a statement. “Without major improvements, this supposed overhaul will prove to be nothing more than a rebranded corporate handout.”

Trump had to submit the text of the agreement to Congress by Friday to set up a slim chance of passing implementation legislation for the deal before January, when Democrats will assume the House majority.