former president barack obama as they were rallying earlier in the day in pittsburgh. fetterman sharpened his attack on oz when it comes to his relationship with president trump. listen to this. >> today dr. oz is going to be standing with donald trump on the stage. [ crowd reacts ] >> i'm going to be proud to be standing with a president that is 100% sedition free. >> reporter: again, as phil was saying, alex as you were saying, this race so incredibly pivotal. it is an open seat. democrats would love to pick it up. republicans certainly want to hold onto it. it could very well determine who controls the senate. that's the reason we have three presidents in the commonwealth of pennsylvania tonight. >> it is a very fine line. it will be interesting to see how oz walks that line. thank you both. we will be back with you later on this evening.