US President Donald Trump signs the United States - Mexico -Canada Trade Agreement, known as USMCA, during a ceremony on the South Lawn of the White House in Washington, DC, January 29, 2020. - The USMCA, the fruit of years of negotiation between the three key trading partners, is billed as an update to the 1994 North American Free Trade Agreement, which Trump had long lambasted as a job killer and threatened to scrap outright. (Photo by SAUL LOEB / AFP)