U.S. President Donald Trump and Japanese Prime Minister Shinzo Abe on Wednesday agreed to start a new dialogue on trade and investment but remained apart on discussions over Japan's exemption from new U.S. steel and aluminum tariffs and the U.S. return to the multilateral Trans-Pacific Partnership.Despite limited progress on the trade front, Abe and Trump reaffirmed their cooperation in dealing with North Korea ahead of the U.S. president's planned summit with the North's leader Kim Jong Un, expected by early June, during their two-day summit in Florida.Noting that the United States has a "…READ FULL ARTICLE