Sen. Ted Cruz (R-TX) is locked in a fierce battle for reelection this year, but he doesn’t necessarily consider that his biggest challenge. “In the 12 years I’ve been in the Senate, I have consistently led the fight to secure our border,” he told the Washington Examiner. “It is today I believe in an existential threat to Texas and to our nation.” Cruz is campaigning heavily on his work, sometimes on a bipartisan basis, to mitigate the pressure on the border. This includes authoring successful amendments mandating information-sharing between the Coast Guard and U.S. Customs and Border Protection to safeguard the maritime border as well as promoting new security initiatives from South Padre Island to Port Mansfield. This includes funding for an air station at one Texas Coast Guard facility and an aerostat radar system....