THE AD: “Full-of-Bull,” a 30-second television commercial for Rep. Jim Renacci, R-Wadsworth, who is running for the U.S. Senate.   WHERE TO SEE IT: On cable markets statewide.   VIDEO: Renacci, dressed in a plaid, button-down shirt, standing in front of a white screen. Next to him is a TV running Sen. Sherrod Brown’s attack ads against him.   SCRIPT: Renacci: See this phony attack ad from career politician Sherrod Brown?   Ad announcer: Jim Renacci. He’s always looked out for himself.   Renacci: You’re going to hear a lot from Sherrod “Full-of-Bull Brown” because a lifelong politician who raises our taxes and broke his pledge on term limits will say anything to stay in Washington. And Sherrod: Next time you want to spread your bull around look in the camera and do it yourself. I’m Jim Renacci — a businessman, not a career politician, and I approve this message.   ANALYSIS: Voters looking for a high-minded debate on the issues should look elsewhere this campaign season. While Sen. Sherrod Brown, running for a third term in the U.S. Senate, started the general election season with two attacks on Republican challenger Jim Renacci, Renacci is not about to take the high road: He basically begins the campaign by questioning Brown’s manhood, bashing Brown for not making his attacks on camera.   And then he launches his own attacks, which both have truth to them. It’s true Brown said he supported lawmakers limiting themselves to 12 years in service when he first ran for the House in 1992. But Brown later announced that he had reversed himself, saying term limits kept local lawmakers more focused on learning the ropes. There appears to be no record of Brown pledging to limit his time in office as a U.S. senator.   Brown has also voted to raise taxes at certain points of his political career, though he’s also voted to lower taxes as well. For example, Brown voted to extend many of the George W. Bush tax cuts in 2012, but made an exception for single filers who made $200,000 or more or joint filers who made $250,000 or more, meaning those taxpayers effectively saw a tax hike. He voted against a measure that year that would've extended the Bush tax cuts for all income levels. Renacci’s staff also cites Brown’s support of the 2010 health care bill as an example of Brown raising taxes, and while that was, in fact, a tax according to the U.S. Supreme Court, it also extended health care to millions more Americans.   Brown voted against the most recent tax cut bill, but that hardly qualifies as “raising taxes” as Renacci says; he’s just not lowering them for the populations that will see a tax cut from that bill.   While there’s truth to the two attacks Renacci levels in this ad, other charges are a little more eye-roll inducing. For example: While Brown has been in politics for much of his post-college career, it’s disingenuous for Renacci, who has served in Congress since 2011, to imply that he's a political newcomer. He’s been serving in public office at least since 1999, when he served on the Wadsworth City Council. And given his decision to jump from the gubernatorial race to the Senate campaign when GOP state Treasurer Josh Mandel dropped his Senate bid, he may not have started out a career politician, but politics appears to be his career now.    - Jessica Wehrman   jwehrman@dispatch.com