Overview

• Pennsylvania's State Supreme Court decision ensures only Bob Casey and David McCormick will appear on the April primary ballots for U.S. Senate.
• The ruling removes several other challengers, virtually guaranteeing primary victories for both Casey and McCormick.
• Polls show Casey leading McCormick, but some surveys indicate a close race in a state that has swung in recent presidential elections.
• The November contest is expected to be one of the nation's most expensive and closely watched Senate races.
• Pennsylvania's Senate race is crucial for Democrats to maintain control of the Senate and the White House.