President Donald Trump on Tuesday was set to deliver a State of the Union speech challenging Democrats to approve funding for his long-sought border wall but stopping short of declaring a national emergency over it, at least for now. At 9 p.m. EST (0200 GMT Wednesday) before a joint session of Congress, Trump likely will stir contention with remarks on immigration policy, after his demand for $5.7 billion in wall funds triggered a historic 35-day partial government shutdown that more than half of Americans blamed him for, according to Reuters/Ipsos polling. Millions of Americans were expected to watch the address on television, giving Trump his biggest opportunity to date to explain why he believes a barrier is needed on the U.S. southern border with Mexico.