U.S. President Donald Trump defended his administration’s deal with Mexico against criticism that there were no major new commitments to stem a flow of Central American migrants crossing into the United States, and said on Sunday more details would soon be released. {video} Key aspects of the agreement are still unclear, including whether Mexico has pledged to buy more U.S. agricultural products and if the deal materially expanded a previous commitment by Mexico to more vigorously police its southern border with Guatemala. Top Democratic senators said many aspects of the deal were not new, while the Mexican ... (full story)