>>> good evening tonight. topping the hour, both presidential candidates pulling out the stops, trying to establish momentum going to campaign 2016's final weekend. donald trump in the battleground state of pennsylvania, hillary clinton in ohio, alongside jay-z and beyonce. surrogates for both sides dotting the map. the reason is clear, polls are tight. our cnn battlefield map is shifting. courts are issuing last-minute decisions on voting and that is barely the half of it tonight. we begin all of it with the trump campaign and cnn's sara murray. >> reporter: 2016's toxic presidential contest, led by two deeply unpopular candidates, is coming to a close in fitting fashion. >> hillary clinton is under fbi investigation again after her e-mails were found on pervert anthony weiner's laptop. >> how did hillary end up filthy rich? pay-to-play politics. >> reporter: donald trump amplifying his latest barrage of negative ads on the campaign trail. >> i think she's unstable. she's trigger...