Top officials from Canada, Mexico and the United States signed a fresh overhaul of a quarter-century-old trade pact yesterday that aims to improve enforcement of worker rights and hold down prices for biologic drugs by eliminating a patent provision, Reuters reported. The signing ceremony in Mexico City launched what may be the final approval effort for U.S. President Donald Trump’s three-year quest to revamp the 1994 North American Free Trade Agreement (NAFTA), a deal he has blamed for the loss of millions of U.S. manufacturing jobs. The event at the National Palace was attended by Mexico President Andres Manuel Lopez Obrador, Canadian Deputy Prime Minister Chrystia Freeland, U.S. Trade Representative Robert Lighthizer, and U.S. White House adviser Jared Kushner. The U.S.-Mexico-Canada Agreement (USMCA) was signed more than a year ago to replace NAFTA, but Democrats controlling the U.S. House of Representatives insisted on major changes to labor and environmental enforcement before bringing it to a vote. The delay at times threatened to scuttle the deal, creating investment uncertainty in all three countries and worrying U.S. farmers already suffering tariffs stemming from Trump’s trade war with China. Read more.