walk us through those states and what is in play. reporter: great to be with you. i call them the big five and it starts in arizona, mark kelly up for reelection in north of him, cortez master oh running for reelection. both those races will be competitive, both of those incumbents are in danger. there was a poll last week that showed the republican candidate in nevada leading cortez mastoh 55 or 6 points, pretty good margin for republican in that state. those are two of the big spots. the other one is in georgia with rafael warnock, newly elected and defending his seat, very competitive state. the republican candidate, same polling showed herschel walker up a single point which is not great for republicans in this environment, you would think a republican candidate in georgia would be doing better but those are the three democrats are going to have to fight to hold