Senate Majority PAC is coming to the aid of former Indiana Sen. Evan Bayh’s race as he faces Rep. Todd Young for the state’s open Senate seat.

The super PAC dropped $700,000 for the ad which criticizes Young for his views on Social Security, highlighting the fact Young called Social Security “a Ponzi scheme” back in 2010 and supports raising the retirement age.

The ad mimics an ad released earlier this week by Senate Majority PAC and a major labor union attacking Florida Sen. Marco Rubio for his views on Social Security.

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But Bayh’s views on the subject have not always been as progressive as those of other Democrats. In 2010, he released a joint op-ed supportive of the Simpson-Bowles deficit reduction plan released that year that proposed raising the retirement age for Social Security.

He was also part of the Senate Special Committee on Aging when it released a report that raised possible options for both reducing benefits for future beneficiaries and raising the age for full retirement benefits.