President Donald Trump on Friday declared a national emergency in a bid to fund his promised wall at the U.S.-Mexico border without congressional approval, an action Democrats vowed to challenge as a violation of the U.S. Constitution. The Republican president’s move to circumvent Congress represented a new approach to making good on a 2016 presidential campaign pledge to halt the flow of undocumented immigrants into the country, whom Trump says bring crime and drugs. He was also expected later on Friday to sign a bipartisan government spending bill Congress approved on Thursday that would prevent another partial ... (full story)