Treasury Secretary Steven Mnuchin said Tuesday that the Trump administration believed it it could get ‘specific commitments’ from China during the 90-day period for new trade negotiations, and that the administration would hike tariffs if not.

“We expect that during the 90 day period we can lock in very specific commitments and these were representations that were made by President Xi directly to President Trump,” Mnuchin said in an appearance on Fox Business. “President Trump will stay involved in the negotiation and, again, this is an agreement between the two presidents that we now have to execute.”