r rter:hrti a cunning litian who o ny bie could ha b bdgdgin washgton,n,n p pngthe sure b. the goveor's thinking tell nbc but ruruo after anding up to trump the d date isn't going to go wn >> 2eporter: this isis beutierr coveri mco rubio's campaign. today he was ring hi until the billionairopopd the b#mbshl. hohostunning was t t chstie e eorseme? stning?? no, lolo chris is an articulate guy. donald pblneeds a lifeline after last night anhe cd in chris christie. i respect that. have more than my fair s sre of endorsrsents. >> reporter: this rnrng in dalla rubio had tipped io the fronrunner. what tetere dealili th here, my friends, aon artt. >>eporter: mocking a riesestrump' sspelled tweets. >>>>nd i only reachcd twcolusionon number, that's h h ey spell thoseseords at the wharton s s sl of business whereb we,tor, number two, just le trump tower hehmust have hired a reign workrk to do s own tweets. he called me" mr. m%ltdown. leleme tell you somethgn lalahtht at t brksksentttt bababaagag he was having a knkntdown.n. first,e d thisis little m meup thing g applying likikmake :ar