Pennsylvania GOP presidential delegate chase adds to mystery

Pennsylvania, long an afterthought in presidential primary stakes, may emerge as a key player in crowning this year’s Republican presidential nominee.

Pennsylvania will send a whopping number of delegates to July’s unsettled Republican National Convention who, under a state party rule, can vote for whichever candidate they choose.

For now, campaigns are trying to win pledges of allegiance from delegate candidates and, later, they expect to jockey to get party leaders to pick the campaigns’ supporters as the 14 delegates.