President Donald Trump is insisting that congressional negotiators working on a compromise border security deal include money for his proposed wall between Mexico and the southern U.S. border. Trump tweeted that if the negotiators, scheduled to hold their first meeting Wednesday, aren’t “discussing or contemplating a Wall or Physical Barrier, they are Wasting their time!” Trump’s insistence on a wall led to an impasse with Democrats that resulted in a 35-day partial government shutdown.