CONNECTICUT
Democratic Rep. Chris Murphy and Republican Linda McMahon met for the third of four debates in their battle for the Senate seat in Connecticut, jousting in front of a crowd so rowdy their boos and cheers caused the debate to go into overtime. Though the candidates made no mention of each others' financial troubles in the past — McMahon's bankruptcy and Murphy's missed mortgage payments have played a central role in attacks — Murphy worked to paint McMahon as out-of-touch with Connecticut voters, while McMahon tagged Murphy as an establishment politician more concerned with remaining in office than serving voters. New in the debate was a disagreement over the Citizens United Supreme Court decision that allowed corporations to spend freely on elections, which Murphy denounced and McMahon said she would not try to overturn with a constitutional amendment.


INDIANA
The first Indiana Senate debate featured both Republican Richard Mourdock and Sen. Joe Donnelly (D) trying to define each other along partisan lines, with Mourdock accusing Donnelly of voting in lockstep for Obama's agenda and Donnelly accusing Mourdock of being "an unapologetic leader of the Tea Party movement." Donnelly attempted to frame himself as bipartisan by touting his work with Sen. Dick Lugar (R) on the auto bailout, a reference to the moderate incumbent defeated by Mourdock's primary challenge. But Mourdock worked to hang the stimulus and Obama's healthcare reform around Donnelly's neck throughout the debate.

OHIO

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Republican Josh Mandel and Sen. Sherrod Brown (D) were fierce and combative at their first of three debates in the Ohio Senate race. Both repeated attacks launched throughout their general election campaigns — Brown hammered Mandel on hiring "unqualified political cronies" as treasurer, and Mandel framed Brown as a member of the Washington establishment and repeated a line that features prominently in most of his ads: “The only way to change Washington is to change the people we send there." The crowd, too, was animated, alternately booing and cheering, sometimes drowning out the candidates and moderators.

ARIZONA
Rep. Jeff Flake (R) and Democrat Richard Carmona echoed many themes from the first debate in their second but launched a new back-and-forth on Flake's persistent attacks on Carmona's temperament. Flake has aired an ad featuring Carmona's old boss retelling a story in which Carmona banged on her door late one night, scaring her and her children. The ad has become a central point of both campaigns, with Carmona's campaign releasing two ads in response and calling Dr. Cristina Beato a politically motivated liar, while Flake's campaign has defended her story and her integrity. The two sparred over the issue at Monday night's debate, where Flake said that his confirmation as Surgeon General was not grounds to dismiss questions about his temperament, and Carmona said the ad was not only a lie but "exemplifies the type of politics that Congressman Flake is involved in. Getting in the gutter. Throwing mud."

NEVADA
The final debate between Sen. Dean Heller (R) and Rep. Shelley Berkley (D) featured the two candidates sparring just inches away from each other, as Heller accused Berkley of "capitalizing on other people's misery" while Berkley accused Heller of shortchanging his female staffers, using congressional salary data. In campaign ads, Heller has highlighted Berkley's designation as one of the most corrupt members of Congress, according to a government watchdog report, and he said during the debate that he does believe the ad. Berkley, for her part, said that Heller has "no credibility when it comes to middle-class tax cuts."

NORTH DAKOTA
Democrat Heidi Heitkamp and Rep. Rick Berg (R) focused mainly on the stalled farm bill in their debate on Monday, a central issue in the state and one that's cropped up previously in Democratic attacks. Heitkamp tied Berg to congressional inaction on the bill, which she chalked up to Republican gridlock, and she said he hadn't done enough to get a bill passed. Berg defended his work on the bill — which remains stalled in the House, though Speaker John Boehner (R-Ohio) has said Congress will take it back up when they return from recess — and said that he is "doing everything I can" to get the bill passed.

--This post was published at 1:23 p.m. and updated at 2:07 p.m.