Allegheny County Republicans

RIchard Drew / AP

On today's program: A free dental clinic at PPG Paints Arena will serve more than 1,000 patients for free; how Sam DeMarco hopes to chart his course as Allegheny County GOP chair; get to know the first African-American woman to graduate from Pitt's engineering program; a peek into the future for autonomous vehicles in Pittsburgh; and what immigrants and allies can do following reports of ICE activity in Pittsburgh.

Allegheny County Council

Allegheny County councilor Sam DeMarco, the top Republican elected official in Allegheny County, is the county party's new chair after a Saturday morning vote in a Greentree hotel. He beat his rival, committee treasurer Bronco Brnardic, 213 to 157.

Sarah Kovash / 90.5 WESA

Allegheny County Republicans failed to elect a new leader last week – so they are taking another shot at it next Saturday, this time with one fewer candidate and a different set of rules.