By Jennifer Rubin
April 26, 2015 6 a.m.
More than other 2016 presidential entrants, Sen. Marco Rubio, R-Fla., seems to have positively affected, even excited, Republicans. Ross Douthat writes, "Rubio more than most candidates fits the way most Republicans want to think about their party and ideology and cause." There is much to that, and certainly Republicans want to get away from the dig that they are "grumpy," "angry" or downright "mean." So how does Rubio do it?