HARRISBURG, Pa. (AP) — A Democratic state senator from Philadelphia and the vice chair of the state Democratic Party said he’s considering running for Pennsylvania’s open U.S. Senate seat in next year’s election. Forty-six-year-old Sharif Street was just elected to his second term in the state Senate last year. He said he’ll start an exploratory committee next month of more than 100 people to start the formal process. Street is a lawyer and the son of former Philadelphia Mayor John Street. He spent the past couple years campaigning around Pennsylvania for Democratic candidates as the state party’s No. 2 official.