CINCINNATI (AP) — An Ohio Republican linked closely to Donald Trump has stepped down as the party’s chair, a signal of her interest in running for the U.S. Senate seat being left by the GOP’s Rob Portman. With Trump’s backing, Jane Timken took over the party leadership from a state chair allied with former Gov. John Kasich, a Republican opponent of Trump. State Republicans have done well during her four years and while untried as a statewide candidate herself, she is well-connected and wealthy. Her announcement Friday comes a day after Dr. Amy Acton indicated interest in the Democratic primary.