FILE - In this July 17, 2018, file photo, Sen. Rand Paul, R-Ky., speaks during a television interview as he defends President Donald Trump and his Helsinki news conference with Russian President Vladimir Putin on Capitol Hill in Washington. Paul announced Saturday that he supports a resolution that would block Trump's declaration of a national emergency to build his long-promised U.S.-Mexico border wall. (AP Photo/J. Scott Applewhite, File)