Regional trade

FILE - In this Nov. 30, 2018 file photo, President Donald Trump, center, sits between Canada's Prime Minister Justin Trudeau, right, and Mexico's President Enrique Pena Nieto as they sign a new United States-Mexico-Canada Agreement that is replacing the NAFTA trade deal, during a ceremony at a hotel before the start of the G20 summit in Buenos Aires, Argentina. Trump’s new North America trade agreement would give the U.S. economy only a modest boost, an independent federal agency finds. (AP Photo/Martin Mejia, File)

FILE - In this March 29, 2014, file photo, China Coast Guard vessel attempts to block a Philippine government vessel as the latter tries to enter the China Second Thomas Disputed Shoals, locally known as Ayungin Shoal, to orate Philippine troops and resupply provisions. A senior U.S. defense official says the presence of large numbers of Chinese ships near islands and islets occupied by the Philippines is “a concern.” Joseph Felter, deputy assistant secretary of defense for South and Southeast Asia, said Friday that the Chinese activities were “somewhat aggressive and provocative.” (AP Photo/Bullit Marquez, File)

Rep. Rep. Steve Scalise, R-La., center, together with Rep. Kevin Brady, R-Texas, left, and Rep. Cathy McMorris Rodgers, R-Wa., right, and other Republican members of Congress speaks to reporters outside the West Wing of the White House following a meeting with President Donald Trump at the White House in Washington, Tuesday, March 26, 2019. (AP Photo/Manuel Balce Ceneta)

President Donald Trump arrives in the House chamber before giving his State of the Union address to a joint session of Congress, Tuesday, Feb. 5, 2019 at the Capitol in Washington. (Doug Mills/The New York Times via AP, Pool)

President Donald Trump listens to China's President Xi Jinping speak during their bilateral meeting at the G20 Summit, Saturday, Dec. 1, 2018 in Buenos Aires, Argentina. (AP Photo/Pablo Martinez Monsivais)

President Donald Trump, center, shakes hands with Canada's Prime Minister Justin Trudeau as Mexico's President Enrique Pena Nieto looks on after they signed a new United States-Mexico-Canada Agreement that is replacing the NAFTA trade deal, during a ceremony at a hotel before the start of the G20 summit in Buenos Aires, Argentina, Friday, Nov. 30, 2018. The USMCA, as Trump refers to it, must still be approved by lawmakers in all three countries. (AP Photo/Martin Mejia)

Saudi Arabia's Crown Prince Mohammed bin Salman, left, and Russia's President Vladimir Putin speak at the start of the G20 summit in Buenos Aires, Argentina, Friday, Nov. 30, 2018. (AP Photo/Natacha Pisarenko)

President Donald Trump arrives and joins other heads of state for a family photo at the G20 summit, Friday, Nov. 30, 2018 in Buenos Aires, Argentina. From left in the front row are Singapore Prime Minister Lee Hsien Loong, Russian President Vladimir Putin and Brazil President Michel Temer. From left on the top row are Rwanda President Paul Kagame and Saudi Arabia's crown Mohammed bin Salman. (AP Photo/Pablo Martinez Monsivais)

FILE - In this Nov. 6, 2018, file photo, Sen. Elizabeth Warren, D-Mass., gives her victory speech at a Democratic election watch party in Boston. Even before they announce their White House intentions, New Hampshire’s ambitious neighbors are in the midst of a shadow campaign to shape the nation’s first presidential primary election of the 2020 season. (AP Photo/Michael Dwyer, File)