A new television ad by a Democratic-aligned super PAC in Louisiana is more than an early attack ad in an important Senate race. It’s an important sneak peek into what Democratic ads could look like in races all over the country next year. First reported by Roll Call, Senate Majority PAC’s first ad in the Bayou State criticizes GOP Rep. Bill Cassidy for voting to raise the retirement age, “to raise Medicare costs $6,000 per year” and to shut down the federal government. Cassidy is challenging Democratic Sen. Mary L. Landrieu. www.youtube.com/watch?v=UOucxyQWsnA#t=21 (more…)