“How does Marco Rubio really feel about the others on Trump’s V.P. short list?” A body language expert answered that question Saturday. Rubio, who vehemently opposed Trump when he ran against him in the 2016 GOP primary, has since been a dedicated loyalist for Trump. Recently, reports suggested that Rubio was among those Trump is rumored to be considering for his second-in-command. Enter Dr. Jack Brown, an expert who recently analyzed the now-infamous State of the Union response by Sen. Katie Britt, an Alabama Republican. Want more breaking political news? Click for the latest headlines at Raw…