4) In the Massachusetts Senate race, Elizabeth Warren is up with her closing ad. "For all the families still struggling, all the people who deserve a decent job, and the women who deserve equal pay. For our kids, crushed by student debt, and our parents, worried about Medicare. Know this: My fight is for you," she says in the ad. 3) Mitt Romney cut an ad for GOP Rep. Jeff Flake in Arizona's Senate race. "He'll fight runaway spending, reduce taxes," Romney says of Flake. "Get our fiscal house in order. The stakes are high, Arizona." Romney has also cut general election ads for two other Senate candidates: Richard Mourdock and Denny Rehberg. 2) President Obama's new ad features his endorsement from former Secretary of State Colin Powell, and will air in Colorado, Florida, Ohio, Iowa, New Hampshire, Nevada, North Carolina, Virginia, Minnesota and Wisconsin. 1) Check out The Hotline's final Senate Race Rankings!