Rep. Gary Peters (D-Mich.) unveiled the first television ads of his U.S. Senate campaign Thursday, emphasizing his personal background in a pair of commercials hitting the airwaves this week.

Peters's campaign is spending more than $1 million to air the ads statewide over the next seven weeks. The positive, introductory spots come after the conservative group Americans For Prosperity ran ads hitting Peters for his support of President Obama's health-care law.

One of the Peters commercials is 30 seconds long and features the Democrat talking about his background. In a 60-second commercial, Peters and his wife stress their humble roots.

"We shared middle class roots, and just kind of clicked," Peters says in the longer ad:

Peters's likely Republican opponent is former secretary of state Terri Lynn Land. Recent polls have shown a close race. The Fix rated Michigan as the ninth most likely state to flip party control in its most recent round of Senate rankings.

Here's the 30-second ad:

Peters will preview his new ad campaign during broadcasts of Michigan and Michigan State games in the NCAA men's basketball tournament this week, his campaign said.