By Patrick Svitek and Maia PandeyThe Texas TribuneGov. Greg Abbott on Sunday endorsed Donald Trump’s comeback campaign for the White House, while hosting the former president at the Texas-Mexico border.“We need Donald J. Trump back as our president of the United States of America,” Abbott said during a speech in Edinburg, promising Trump would secure the border and “restore law and order.”Trump said the endorsement was a “tremendous honor” given how hard Abbott has worked to fortify the border under Democratic President Joe Biden.“Mr. Governor, I am going to make your job much easier,” Trump said. “You’ll be able to ...