GOP senator: Trump growing in understanding
15:13Sen. Bob Corker, R-Tenn., discusses the latest with Iran, how the 2016 candidates stack up against ISIS and why he says Donald Trump is evolving and growing in his understanding.
Sen. Bob Corker, R-Tenn., discusses the latest with Iran, how the 2016 candidates stack up against ISIS and why he says Donald Trump is evolving and growing in his understanding.
