MADISON, Wis. (AP) — The first television ad backing Republican Gov. Scott Walker’s presidential campaign to begin airing in Iowa next week highlights his 2011 battle with public sector unions. The 60-second ad was released Thursday by the Unintimidated super PAC that has announced it is spending $17 million in the next six months on an ad campaign backing Walker. The ad will begin airing statewide in Iowa on Tuesday as part of a $7 million buy. The ad comes as Walker is trying to regain ground in Iowa after rocketing to a fast start earlier this year before falling to the middle of the pack in more recent polls. The ad highlights Walker’s record as governor, including winning a 2012 recall spurred by his effectively ending unions’ collective bargaining rights.
