A poll for the DCCC shows Republican Daniel Donovan with a commanding special election lead.
The senator said there's "probably a limit" on how many times Romney can win the state.
The senator took a shot at potential presidential rivals who serve as governors.
"No, I'm waiting too," she said in a magazine interview.
The likely 2016 candidate says the party's 2012 nominee has had his day.
The Wisconsin governer is a possible GOP presidential candidate.
The vice president said he doesn't think he needs to decide until the summer.
Democrats like their candidate against Kirk in 2016 Senate race.
Democratic Congressional Campaign Committee chief is pushing colleagues to meet fundraising.
The large field of potential White House hopefuls bashed President Obama's speech.