Senator Lindsey Graham denied speculation on a potential 2016 presidential run . `` I 've strongly encouraged him to give it a look , '' McCain said . Graham called Sen. Marco Rubio ( R - Tex . ) ` ` not quite ready '' to be president in a Weekly Standard interview .
Senator Lindsey Graham denied speculation on a potential 2016 presidential run . Graham called Sen. Marco Rubio ( R - Tex . ) ` ` not quite ready '' to be president in a Weekly Standard interview .