President Joe Biden is seeking a second term in the White House against the man he defeated four years ago. Before being elected as the 46th president in 2020, he served in the U.S. Senate and then was vice president for two terms under Barack Obama.

Former President Donald Trump quickly disposed of more than a dozen challengers in the Republican primary and won his party’s presidential nomination for the third consecutive time. He would be only the second person to serve two non-consecutive terms as president, following Grover Cleveland.

The latest

• Pennsylvania’s primary could foreshadow who wins the nation’s biggest battleground in November
• Allegheny County election officials make final preparations ahead of Tuesday’s primary
• What Pittsburgh older voters think about the ages of Biden and Trump
• Third parties could cause voting upheaval in what’s shaping up to be a tight presidential race in Pennsylvania
• President Joe Biden is lapping Donald Trump when it comes to campaign cash — and he’ll need it
• Biden leans on his Democratic predecessors as Trump remains isolated from other Republican leaders

U.S. Sen. Bob Casey, son of a former governor, is seeking his fourth term in Washington. Prior to serving in the Senate, he spent eight years as state auditor general and two years as state treasurer.

Former hedge fund executive David McCormick is making his second run for the Senate. He lost the GOP primary two years ago to celebrity doctor Mehmet Oz, who was defeated by John Fetterman in the general election.

The latest

• How did Republican David McCormick dodge a primary in his bid to unseat U.S. Sen. Bob Casey?
• Donald Trump endorses David McCormick in Pennsylvania’s pivotal U.S. Senate race
• Casey, McCormick to appear alone on Senate ballots in Pennsylvania after courts boot off challengers
• Battle for the White House looms large over Pennsylvania’s U.S. Senate race
• Washington notebook: Israel, antisemitism continue to be flashpoints in Pennsylvania’s Senate race

Former head of Philadelphia’s public defense lawyers association, former head of Montgomery County’s public defender’s office

State Auditor General (2013-2021), state congress, York County (2007-2013)

Bucks County solicitor (2020-2023), former prosecutor in the Philadelphia district attorney’s office and the U.S. attorney’s office

State representative of Philadelphia (2017-present)

Delaware County district attorney (2019-), former Pennsylvania safe schools advocate, former U.S. assistant attorney

York County district attorney (2018-present), prosecutor with York County district attorney’s office

State representative, Delaware County (2021-present), assistant U.S. attorney in Colorado and Pennsylvania

The latest

• Among Pa. attorney general candidates, Philadelphia crime woes are a springboard for exploring issues
• Rep. Jared Solomon’s $1 million campaign stash is tops among candidates for Pa. attorney general in primary

U.S. Rep. Summer Lee, D-Swissvale, first elected in 2022, is the first Black woman to represent Pennsylvania at the U.S. Capitol. She has aligned herself with the group of lawmakers known as the Squad, which includes other progressive lawmakers of color. Ms. Lee is a former state legislator.

Edgewood Borough Council member Bhavini Patel initially entered the 2022 Democratic primary but quickly withdrew. She was the co-founder and CEO of a small business and is a community outreach manager for Allegheny County.

Business executive James Hayes is running unopposed.

The latest

• Voters air opinions on Lee and Patel as they drop off ballots early in Squirrel Hill
• Where do Summer Lee and Bhavini Patel stand on policy?
• Bhavini Patel stands between Summer Lee and a second term in Pittsburgh congressional race

U.S. Rep. Chris Deluzio, D-Aspinwall, is seeking a second term in Washington. He is a graduate of the Naval Academy in Annapolis, an Iraq War veteran, and a voting rights attorney. He was the starting pitcher for the Democrats last year in the annual Congressional Baseball Game.

State Rep. Rob Mercuri, R-Pine, also is an Iraq War veteran, where he served after graduating from the U.S. Military Academy in West Point. He is a former banker who now owns a small business.