Senator Bob Casey Announces Run For Fourth Term, Setting Stage For Competitive Senate Race

Pennsylvania's longest-serving Democratic senator announced his bid for reelection to a fourth term.
Republicans are eager to challenge Casey in what is expected to be one of 2024's most expensive Senate races.
Casey is a close ally of President Biden, whose agenda could face major obstacles should Republicans regain control of the Senate.
Two prominent Pennsylvania Republicans, including a former Senate candidate, are eyeing bids to unseat Casey.
Democrats face difficult odds in defending their narrow Senate majority, with Casey among those considered vulnerable.