kentucky 's junior senator is poised to enter the 2016 presidential contest on tuesday , at a moment when only sen. ted cruz , the tea party darling , is already in the race and consuming precious news-cycle oxygen , but the issue that made him a national figure two years ago .
paul will launch his campaign tuesday morning in louisville , kentucky with the populist slogan ` defeat the washington machine .
unleash the american dream .
' the capitol hill staffer said in a phone interview .