WASHINGTON (AP) — President Donald Trump is taking the shutdown battle to the U.S.-Mexico border, seeking to bolster his case for the border wall after negotiations with Democrats blew up over his funding demands.

Trump stalked out of his meeting with congressional leaders — "I said bye-bye," he tweeted soon after — as efforts to end the partial government shutdown fell into deeper disarray. Hundreds of thousands of federal workers now face lost paychecks on Friday.

During his stop Thursday in McAllen, Texas, Trump will visit a border patrol station for a roundtable on immigration and border s...