President Donald Trump will make his case to Americans on Tuesday that a wall is urgently needed to resolve what he calls a crisis at the U.S.-Mexico border, trying to make good on a campaign promise in a dispute that has sparked an 18-day partial government shut-down. {video} Trump’s prime-time address, scheduled for 9 p.m. (0200 GMT Wednesday) will be the Republican president’s latest attempt to persuade Democrats to back his push for a steel barrier on the southern border. Amid his talk of crisis, Trump is considering declaring the border situation a national emergency, which could get him out of an impasse by ... (full story)