President Trump on Thursday  said he has  agreed to pleas from the leaders of Canada and Mexico not to withdraw immediately from the North American Free Trade Agreement, but he also warned he would still pull the United States out if he could not negotiate a better deal.

 Trump tweeted  “I received calls from the President of Mexico and the Prime Minister of Canada asking to renegotiate Nafta rather than terminate,” “I agreed…”. Some moments later,  he tweeted again  “…subject to the fact that if we do not reach a fair deal for all, we will then terminate NAFTA. Relationships are good, deal very possible!”

I received calls from the President of Mexico and the Prime Minister of Canada asking to renegotiate NAFTA rather than terminate. I agreed..

— Donald J. Trump (@realDonaldTrump) April 27, 2017

…subject to the fact that if we do not reach a fair deal for all, we will then terminate NAFTA. Relationships are good-deal very possible!

— Donald J. Trump (@realDonaldTrump) April 27, 2017

Trump’s tweets showed once again his taste for high-stakes deal-making and his willingness to reverse himself. Only hours earlier, the president’s aides put out word that he was likely to sign a directive starting a six-month clock to end the trade agreement. During  phone calls with President Enrique Peña Nieto of Mexico and Prime Minister Justin Trudeau of Canada, Trump stepped back from the brink of a trade war with two of the United States’ biggest trading partners.

The White House described the calls as “pleasant and productive,” and Trump issued a statement Wednesday night, saying: “It is my privilege to bring Nafta up to date through renegotiation. I believe that the end result will make all three countries stronger and better.”