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 .
Sen. Lindsey Graham fuels speculation on a potential 2016 presidential bid . Graham says Sen. Marco Rubio ( R-Fla. ) `` not quite ready '' to be president in a Weekly Standard interview .