Each state elects two senators to the United States Senate for staggered 6-year terms. Senators represent the entire state. Pennsylvania’s senators are:
The United States is divided into 435 congressional districts, each with a population of about 710,000 individuals. Each district elects a representative to the U.S. House of Representatives for a two-year term. Representatives are also called congressmen/congresswomen.
The White House
United States Senate
United States House of Representatives