Pennsylvania Democratic Senate candidate Joe Sestak defends signing letter pushed by J Street calling for easing Gaza blockade. LOWER MERION TOWNSHIP – One day, months before the race to represent Pennsylvania in the US Senate entered the homestretch, Democratic candidate Joe Sestak arrived at his campaign office to find it practically empty. “Where is everybody?” Sestak told The Jerusalem Post he had asked at the time, only to be told it was Pessah. That’s how he found out that nearly half his staff was Jewish. But on Monday, the day before Americans finally head to the polls, Sestak’s headquarters in...