Ohio Treasurer Josh Mandel has returned more than $100,000 in campaign contributions in response to an FBI investigation into 21 donors who had no record of giving to federal campaigns and many appearing to have low incomes. Mandel, a Republican, is running against incombent Democrat Sen. Sherrod Brown. Mandel's campaign treasurer Kathryn Kessler sent a letter to donors explaining that any contributions appearing to be under investigation would be refunded. From The Toledo Blade: Although the campaign provided a copy of the letter to The Blade, it would not explain the timing of the decision or how long it has been aware of the federal probe. The Blade revealed the unusual pattern of contributions in August. The company's owner, Benjamin Suarez, and 16 of his employees (plus some of their spouses) gave about $200,000 to Mr. Mandel and U.S. Rep. Jim Renacci (R., Wadsworth) last year. Each of those donors gave $5,000, the maximum allowable amount, to one or both candidates. The Ohio Senate yesterday passed new fracking regulations, and the final version caused some environmental organizations to change their stance on the bill. The Ohio Environmental Council and the Sierra Club had both been neutral on the legislation until changes were made forcing anyone suing over chemical trade secrets to show current or potential harm, according to The Enquirer. The regulations are part of Kasich's new energy bill and easily passed both the Senate and House and is expected to be signed by Kasich soon. Cincinnati Public Schools says it will apply for the latest available federal education grants, which amount to nearly $700 million. The grants are geared toward helping schools proceed with reform and innovation. According to a new poll, President Obama leads Mitt Romney in Ohio by six percentage points. Wonder if Obama's “cow pie of distortion” speech had anything to do with his lead. The John Edwards trial has entered day six of deliberations. United Nations inspectors have reportedly found uranium in Iran enriched beyond the highest levels previously reported. One diplomat said the measure could actually be a measurement error, though the reading could also mean that Iran is closer to producing bomb-grade uranium than previously thought. Scientists might be one step closer to creating birth control for men after U.K. scientists found a gene used to enable sperm to mature. From USA Today: “Profits at big U.S. companies broke records last year, and so did pay for CEOs.” Facebook's initial public offering didn't go entirely as expected, and some investors are getting refunds after technical problems and other issues marred the company's first week of trading. The Reds completed a four-game sweep of the Atlanta Braves last night, winning their sixth in a row and overtaking the St. Louis Cardinal for first place in the NL Central.