President Donald Trump may be touting his trade deal with Canada and Mexico as a victory, but emerging complaints from liberals and conservatives are threatening to sink the agreement in Congress. Democrats, whose votes Trump needs to pass the deal in the House, say they want to see stronger protections against pollution and climate change, improved labor standards in Mexico and certainty that the U.S. will regain jobs lost to Mexico. And they want assurances the deal can be enforced. Meanwhile, a group of 40 Republicans is protesting new protections for LGBT workers that Canada insisted on, potentially imperiling some GOP support.