MISSION — Hours before the president talked about “bad people with bad ideas” entering the country at a rally in Florida, a United States senator strapped on a vest, walked through the thick Rio Grande Valley brush as Friday night turned to Saturday and found what he, President Donald Trump and many discuss in Washington D.C. The senator linked the findings to organized violent crime. “There were more than one that were large, young men with a significant percentage of tattoos that might suggest gang affiliation,” U.S. Sen. Ted Cruz, R-Texas, said Saturday afternoon, recounting an overnight ride along with...