(VIDEO-AT-LINK)Bronx Borough President Ruben Diaz Jr. fired back at Texas Senator Ted Cruz for remarks he made over the weekend about his borough. During a speech in Dallas Saturday, Cruz said he was tired of northern senators like Charles Schumer lecturing him on border security. He then added, "I understand that Manhattan is very concerned with their security with the Bronx, but it's a little bit different on 2,000 miles of the Rio Grande." Diaz Jr. responded, "This is unbecoming of him as a U.S. Senator, you know, who wants to be President of the United States—which, last I checked,...