Via Washington Post:
Among the candidates on the Republican primary ballot here Tuesday are a local congressman, the woman who succeeded him on the county commission, a part-time mayor and the chairman of a local historical society. There is also a husband and wife running separately.
All are aspiring to represent Pennsylvania at the Republican National Convention in Cleveland, where they could turn out to be some of the most influential delegates in the nation.
The bitter contest between Donald Trump, Sen. Ted Cruz of Texas and Ohio Gov. John Kasich could come down to the final few undecided delegates from places such as Pennsylvania. If Trump falls short of the 1,237 delegates needed to win the nomination outright, his team has vowed to launch a full-scale pressure campaign to win over dozens of the delegates elected in the state’s unusual primary.
While most states award convention delegates on a winner-take-all or proportional basis, 54 of Pennsylvania’s 71 delegates — three for each of 18 congressional districts — are officially unbound to a candidate and do not have to announce their intentions before Tuesday’s vote. The winners can vote for whomever they want at the convention.