(CNN) - The Democrats have a slight lead in two crucial Senate showdowns that could decide whether the party keeps control of the chamber this November, according to new polling.
And NBC News/Marist surveys released Tuesday also indicate that two important gubernatorial races are all knotted up.
(CNN) - With just over a week to go until the runoff, the two candidates in the Republican Senate primary in Georgia are sharpening their attacks on each other.
Rep. Jack Kingston and businessman David Perdue fired away at each other as Sunday night's one and only televised debate between the two candidates turned into a testy affair. The winner of the July 22 runoff will face off against Democrat Michelle Nunn in November's general election.
(CNN) - President Barack Obama says keeping the Democrats in control of the Senate is one of his top priorities this year.
But his trip to Colorado is a vivid illustration of just how much the President – who is the party's top fundraiser but who is also saddled with low approval ratings – can, and can't, help.
(CNN) - Alison Lundergan Grimes released her first statewide television ad on Tuesday in Kentucky's highly competitive Senate race, but it won't be the only one Blue Grass state residents see this week.
The Kentucky Opportunity Coalition, an outside group backing Senate Minority Leader Mitch McConnell, launched an ad of its own, which questions his Democratic challenger's stance on a number of issues.
Washington (CNN) - Sen. Ted Cruz of Texas is calling for an investigation into the bitter and divisive Mississippi Republican Senate primary contest.
"What happened in Mississippi was appalling," the freshman Republican senator from Texas – a rock star among tea party activists and other grassroots conservatives – said Monday.
(CNN) - The campaign of the tea party-backed challenger who narrowly lost a Republican primary runoff in Mississippi to longtime Sen. Thad Cochran said it's building the evidence needed to legally contest those results.
"The evidence we have found so far, which will in part serve as the basis for a challenge, is promising," Noel Fritsch, spokesman for state Sen. Chris McDaniel, told CNN Monday. Fritsch spoke to CNN as attorneys for the campaign told reporters at a news conference at the Hinds County courthouse in Jackson, Mississippi that they will go through ballot boxes, including absentees, before taking legal action.
(CNN) - With four months to go until the midterm elections, the Democratic senator in a crucial contest that could decide the balance of power in the Senate, has just over $5 million in her campaign warchest.
Democratic Sen. Jeanne Shaheen of New Hampshire's re-election campaign announced Monday that it had $5.1 million cash on hand. And they reported that the senator raised more than $2.8 million the past three months, bringing to more than $10 million she's brought in this cycle. The campaign said Shaheen received donations from more than 31,000 contributors, up nearly 5,000 from the first three months of the year.
(CNN) - When former Sen. Scott Brown of Massachusetts began to seriously think about launching a campaign for the Senate in neighboring New Hampshire, "one of the first calls he made to talk about running was to Gov. Mitt Romney," a close adviser to Brown tells CNN.
Wednesday, the two men talked again, as the former Massachusetts governor and 2012 GOP presidential nominee officially endorsed Brown, the frontrunner among the Republican candidates hoping to challenge Democratic Sen. Jeanne Shaheen of New Hampshire this November.
(CNN) - Three days after Mississippi's bitter Republican Senate primary runoff ended, the challenger in the race refuses to concede, charging that "this was not a fair election. Activity was illegal, at worst. Unethical, at best."
And in an exclusive interview with CNN affiliate WLOX, state Sen. Chris McDaniel said he was shocked at how fellow Republicans verbally attacked him after he announced a primary challenge against six-term Sen. Thad Cochran.
(CNN) - Mitt Romney's making another endorsement, and this time it's in a crucial Senate race in his own backyard.
CNN has learned that next week the 2012 GOP presidential nominee will endorse Scott Brown, the frontrunner among the Republican candidates hoping to challenge Democratic Sen. Jeanne Shaheen of New Hampshire this November.