i'm bernie sanders,

i approve this message, p>>> it's the nfl's biggest game pof the year but it's also the phighest-rated show on ptelevision, making the super pbowl the perfect marriage of psports and media. pthis year's expected to pgenerate, get this, $377 million pin advertising revenue.

p>> reporter: sunday night p>> caught for the touchdown! p>> reporter: men in tight pants, phard helmets. poff the field in commercial pbreaks there's another just as pintense. p>> america has seen the light! p>> and there's a butt in front pof it! p>> this behind the scenes battle pis between women, men in beards pand buns, working from pindustrial space, doodling. p"madman" was then.

pbars. paccused of kidnapping and pmurdering a 13-year-old girl. pnow we're learning new details pabout how they allegedly planned ptheir horrifying step by step lot to end the girl's life with pchilling detachment. pabc's eva pilgrim takes us pinside the case. p>> i never had one of my friends pdie. p>> reporter: she was the sweet pvirginia middle schooler found pmurdered. ptonight the details of nicole plovell's short life and gruesome pdeath coming into focus along pwith new concerns about the pdangers of social media.

i approve this message, p>>> it's the nfl's biggest game pof the year but it's also the phighest-rated show on ptelevision, making the super pbowl the perfect marriage of psports and media. pthis year's expected to pgenerate, get this, $377 million pin advertising revenue. pand while the stakes are high pfor the teams on the field, they pmay be even higher for the teams pand the ad agencies across pamerica. pabc's nick watt takes us inside psome of the nation's most pcreative minds. p>> reporter: sunday night

i'm bernie sanders, the american people can't afford to wait for ideas that sound good on paper... but will never make it in the real world. the grandmother who has to choose between paying for medicine and paying rent... can't wait. the single mom who desperately needs a raise... can't wait. the student with a mountain of debt can't wait. p we can make real progress, r right now for people p and families who need it. p i'm hillary clinton and i

and families who need it. p i'm hillary clinton and i p>>> finally tonight, the race pfor new hampshire and the stakes pcouldn't be higher in the

pdonald trump will be front and pcenter for their final debate pmoderated by our own david muir pand martha raddatz. pgiving us a sneak peek tonight. p>> hey, good evening. pthe excitement is mounting here pat st. anselm college in pmanchester, new hampshire, as pour abc news crew is putting the pfinishing touches on our debate pstage. ptop three candidates -- donald ptrump, ted cruz, marco rubio -- pwill be taking center stage here ptomorrow night and if there's pone thing we can count on it's psome heated exchanges.

psome heated exchanges. pall the candidates are gunning pfor momentum. pjust ahead of the crucial new peverybody wants to make their pmark, survive this debate, and pmove forward. pbut it may be the last chance pfor some. p>> thank you, martha. pmartha and david muir will pmoderate that debate tomorrow pnight at 8:00 eastern, 7:00 pcentral time, right here on abc. pit was former president george ph.w. bush who said, if anyone ptells you america's best days pare behind her, they're looking pthe wrong way.