9) A new Suffolk Univ./WHDH-TV poll out late Monday night showed the New Hampshire gubernatorial race tied, with Democrat Maggie Hassan at 41 percent, to 38 percent for Republican Ovide Lamontagne. 8) Arizona Democratic Senate nominee Richard Carmona is up with a new ad running statewide today, featuring him talking about his mom and the things she taught him growing up. "I didn't realize it, but she's probably the best education I got in my life," he says. The ad comes after last week's attack ad from GOP Rep. Jeff Flake accuses Carmona of having issues with women, anger, and ethics. The two candidate sparred over the recent ads in a debate last night that the Arizona Republic reported "teetered on the edge of nasty." 7) In Indiana's Senate contest, Democratic Rep. Joe Donnelly and GOP Treasurer Richard Mourdock debated last night for the first time. Here's the Indianapolis Star: Meanwhile, the Democratic Senatorial Campaign Committee released a new television ad saying Mourdock will "add to the gridlock in Washington" and calling him a "tea party zealot." Like previous ads, it uses clips of past Mourdock comments. 6) A new spot out from Florida GOP Senate nominee Connie Mack stars Mack's mom. "Who would have thought he wants to change the world," she says. "But he does." Mack's dad, the former senator, also appears in the ad. 5) And two big guest stars in new Nevada Senate race ads: Bill Clinton appears in the latest commercial for Democratic Rep. Shelley Berkley. The ad uses clips from Clinton making a campaign speech on Berkley's behalf. And GOP Gov. Brian Sandoval cut a new ad for Sen. Dean Heller. Sandoval says the election is "about who we trust" to fight for the state, and touts Heller's "character" and "integrity." Heller and Berkley met for a final debate last night, on Jon Ralston's TV show, which will air in two parts. The first part aired last night. 4) And there were a bunch of other Senate debates last night: In Connecticut, Democratic Rep. Chris Murphy and former WWE CEO Linda McMahon faced off again, and things got heated. The New Haven Register: North Dakota featured a debate between GOP Rep. Rick Berg and former Democratic Attorney General Heidi Heitkamp, and the two sparred over Medicare and the country's health care law. 3) Mark Leibovich's profile of Paul Ryan is up. 2) Secretary of State Hillary Clinton said she's responsible for the diplomats' security and what happened in Benghazi. 1) President Obama and Mitt Romney will face off in their second debate tonight at Hofstra University on Long Island. Read up on what each candidate needs to do. And check out this New York Times primer on the debate format. -- Steven Shepard contributed.