The Trump administration warned Republican lawmakers Tuesday about record numbers of illegal crossings at the southern border with Mexico as Congress appeared to be on the verge of terminating President Donald Trump’s declaration of an emergency there. Homeland Security Secretary Kirstjen Nielsen visited the U.S. Capitol as the White House sought to discourage more Republican defections on the measure rebuking the president. Republican senators had a “spirited discussion” on the matter, Senate Majority Leader Mitch McConnell said.
