Rubio to Iowans: 'I Am Asking You Tonight to Caucus for Me'Republican presidential candidate Marco Rubio speaks in Urbandale, Iowa, on caucus night.Rubio to Iowans: 'I Am Asking You Tonight to Caucus for Me'00:42PrintFeb. 2, 2016, 2:17 AM UTC / Updated Feb. 2, 2016, 2:17 AM UTC
