HARLOW: All right, President Trump hits the campaign trail again today. He begins a three-day swing to western states with key Senate races. First up, the president will pay a visit to Montana because he will make his pitch there against the Democrat Senator Jon Tester. This race is personal for the president after a few months ago you remember, Tester publicly shared those allegations against the president's personal physician who was up to be VA secretary. Obviously, that was a failed bid, and the president points a lot to Tester because of that.</s>SCIUTTO: The president's push comes as Cnn's newest model shows dwindling prospects for Democrats to retake the Senate in November. Joining us now to discuss his predictions, all the data, Cnn political writer and analyst Harry Enten. So what are the key races here and why does it look bad for the Senate -- for the Democrats in the Senate?</s>HARRY ENTEN, CNN POLITICAL WRITER: Sure, so we'll take a look at the overall viewpoint which is my forecast right now suggests that Republicans will not only maintain control of the Senate, but will actually gain a seat. That's the best forecast. That means they control 52 seats in the next Senate, compared to 48 for the Democrats. Now, why does it look that way? Remember, the Democrats are defending a lot of seats -- on the map, right, they control 26 out of the 35 seats, and a lot of those seats are in red states. But let's talk about some specific races, right? We can talk specifically about the State of Nevada, that's a state that Hillary Clinton won two years ago. It's a state that has a Republican Senator in Dean Heller. But the recent polling from that state actually has Dean Heller ahead.
Democrats Struggle in Must-Win Senate Races