john, i asked jeff zeleny, mehmet oz is hopeful. he believes he can pull it off. can he? >> he sure can. look, this thing is tight as a tick. take a look at this. 2,600 votes. 86% in. votes outstanding all over the place. but if you want evidence that kathy barnette could be acting as a spoiler for oz after the trump endorsement, take a look at places where kathy barnette's in first place, like montgomery county. now this is her home county. it's the third largest county in pennsylvania. oz is in second place. so you see there's evidence that they're eating into each other's bases. and if you add those two numbers up of course mccormick's in a distant third. but mccormick may have been able to come through the middle. take a look where he's rising which is surprising. rural counties. traditionally rural counties are the heart of trump country, especially in a state like pennsylvania. mccormick outperforming in a lot of these rural counties. also something interesting to take a look at. this is coal country. now, dr. oz is performing particularly well in coal country.