Sen. Ted Cruz, R-Texas, and Rep. Paul Ryan, R-Wis., penned a joint op-ed for the Wall Street Journal Wednesday calling on Congress to pass Trade Promotion Authority legislation. The two conservative lawmakers argue that the legislation, also known as Fast Track, is urgently needed to strengthen the U.S.’s ability to negotiate future trade deals.By establishing TPA, Congress will send a signal to the world. America’s trading partners will know that the U.S. is trustworthy and then put their best offers on the table. America’s rivals will know that the U.S. is serious and won’t abandon the field, Cruz and Ryan wrote.The op-ed comes as many conservatives are torn over whether to support the legislation. While historically the right has usually favored free trade, some groups are expressing qualms over it this time around, in large part because it involves ceding congressional authority to the White House.