The DCCC released new polling data today meant to show that Dem Kirsten Gillibrand can still knock off GOP Rep. John Sweeney. The polling, commissioned from Grove Insight, puts Sweeney ahead, 43%-31% -- noteworthy because incumbent Sweeney's well below 50%. Meanwhile, Capitol Confidential also reports that the DCCC has bought up $500,000 worth of local TV ad time -- a "significant buy in this market," the blog says. But today's Hill says the RNC disagrees: It's placed Sweeney's seat on a list of seats it's confident it will retain this fall.