. >> mark tomsis's national show is flooded with calls. >> people have literally called in and cried on air. i have even fought back some of my own tears. >> it's a manifestation of something that you feel that you breathe all the time. that doesn't have a texture or doesn't have a mass but it's very real and always around you like air. >> a painful reminder for so many black families. >> love you. >> trayvon is not just his mom's kid. he's everyone ps child. >> one 17-year-old's death giving age old fire a new face. >> now we switch to the presidential campaign trail where on the heels of a big win in illinois just last night, mitt romney's campaign found itself once again fending off the damage from a self-inflicted wound. sfi spichkly a quote they would like to have back about now. our report tonight from chuck todd. >> reporter: it was one of the big republican endorsements mitt romney craved, but former florida governor jeb bush's statement in the wake of the illinois win came on paper. now is the time for republicans to unite behind governor romney. and it lacked the enthusiasm