Mary Kathleen Costello
Appointed by President Joseph R. Biden in 2024 and confirmed by the Senate 52–41, Mary Kathleen Costello is a Judge on the U.S. District Court for the Eastern District of Pennsylvania. She earned a law degree from Temple University James E. Beasley School of Law in 2001. Sources ↓
- Born
- 1968 · age 58
- Appointed by
- Joseph R. Biden, 2024
- Confirmed
- 52–41
- Education
- Temple 1998 · Temple James E. Beasley Law 2001
- Succeeded
- Cynthia M. Rufe
Federal judicial service
| Year | Court | Appointed by | Vote |
|---|---|---|---|
| 2024 | Eastern District of Pennsylvania succeeded Cynthia M. Rufe | Biden (D) | 52–41 |
Party letters show the appointing president’s party, not the judge’s own.
Confirmation vote
Nomination Confirmed 52–41 on September 17, 2024 · 118th Congress, Roll Call 243. Each senator links to their judicial-voting record.
Voted to confirm · 52
45 D, 4 R, 3 I
- Tammy Baldwin(D-WI)
- Michael Bennet(D-CO)
- Richard Blumenthal(D-CT)
- Sherrod Brown(D-OH)
- Laphonza Butler(D-CA)
- Maria Cantwell(D-WA)
- Ben Cardin(D-MD)
- Thomas Carper(D-DE)
- Bob Casey(D-PA)
- Susan Collins(R-ME)
- Christopher Coons(D-DE)
- Catherine Cortez Masto(D-NV)
- Tammy Duckworth(D-IL)
- Richard Durbin(D-IL)
- John Fetterman(D-PA)
- Kirsten Gillibrand(D-NY)
- Lindsey Graham(R-SC)
- Maggie Hassan(D-NH)
- Martin Heinrich(D-NM)
- George Helmy(D-NJ)
- John Hickenlooper(D-CO)
- Mazie Hirono(D-HI)
- Timothy Kaine(D-VA)
- Mark Kelly(D-AZ)
- Angus King(I-ME)
- Amy Klobuchar(D-MN)
- Ben Lujan(D-NM)
- Edward Markey(D-MA)
- Jeff Merkley(D-OR)
- Lisa Murkowski(R-AK)
- Christopher Murphy(D-CT)
- Patty Murray(D-WA)
- Jon Ossoff(D-GA)
- Alex Padilla(D-CA)
- Gary Peters(D-MI)
- Jack Reed(D-RI)
- Mitt Romney(R-UT)
- Jacklyn Rosen(D-NV)
- Bernard Sanders(I-VT)
- Brian Schatz(D-HI)
- Charles Schumer(D-NY)
- Jeanne Shaheen(D-NH)
- Kyrsten Sinema(I-AZ)
- Tina Smith(D-MN)
- Debbie Stabenow(D-MI)
- Jon Tester(D-MT)
- Chris Van Hollen(D-MD)
- Mark Warner(D-VA)
- Raphael Warnock(D-GA)
- Elizabeth Warren(D-MA)
- Peter Welch(D-VT)
- Sheldon Whitehouse(D-RI)
Voted against · 41
41 R
- John Barrasso(R-WY)
- Marsha Blackburn(R-TN)
- John Boozman(R-AR)
- Mike Braun(R-IN)
- Katie Britt(R-AL)
- Ted Budd(R-NC)
- Shelley Capito(R-WV)
- Bill Cassidy(R-LA)
- John Cornyn(R-TX)
- Kevin Cramer(R-ND)
- Mike Crapo(R-ID)
- Ted Cruz(R-TX)
- Steve Daines(R-MT)
- Joni Ernst(R-IA)
- Deb Fischer(R-NE)
- Chuck Grassley(R-IA)
- Bill Hagerty(R-TN)
- Josh Hawley(R-MO)
- John Hoeven(R-ND)
- Cindy Hyde-Smith(R-MS)
- Ron Johnson(R-WI)
- John Kennedy(R-LA)
- James Lankford(R-OK)
- Mike Lee(R-UT)
- Cynthia Lummis(R-WY)
- Roger Marshall(R-KS)
- Mitch McConnell(R-KY)
- Jerry Moran(R-KS)
- Markwayne Mullin(R-OK)
- Rand Paul(R-KY)
- Pete Ricketts(R-NE)
- James Risch(R-ID)
- Marco Rubio(R-FL)
- Eric Schmitt(R-MO)
- Rick Scott(R-FL)
- Tim Scott(R-SC)
- Dan Sullivan(R-AK)
- John Thune(R-SD)
- Tommy Tuberville(R-AL)
- Roger Wicker(R-MS)
- Todd Young(R-IN)
Did not vote · 7
2 D, 4 R, 1 I
- Cory Booker(D-NJ)
- Tom Cotton(R-AR)
- Joseph Manchin(I-WV)
- Mike Rounds(R-SD)
- Thomas Tillis(R-NC)
- J. Vance(R-OH)
- Ron Wyden(D-OR)
Education
Questions & answers
- Who appointed Mary Kathleen Costello?
- President Joseph R. Biden appointed Mary Kathleen Costello to the U.S. District Court for the Eastern District of Pennsylvania in 2024.
- Was Mary Kathleen Costello appointed by a Democrat or a Republican?
- Mary Kathleen Costello was appointed by President Joseph R. Biden, a Democrat. JudicialFinder records the appointing president's party, not a judge's own politics.
- What was Mary Kathleen Costello's confirmation vote?
- The Senate confirmed Mary Kathleen Costello 52–41 on September 17, 2024.
- Which court is Mary Kathleen Costello on?
- Mary Kathleen Costello is a Judge on the U.S. District Court for the Eastern District of Pennsylvania.
Sources
Each fact on this page traces to a primary public record.
- FJC Biographical Directory
- Wikidata
- Portrait: United States Senate Judiciary Committee (CC0), via Wikimedia Commons
- Confirmation roll-call (Senate.gov, 2024)
How we source & reconcile data → Data & Sources
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1 year on the U.S. District Court for the Eastern District of Pennsylvania. Data as of 2026-08-10. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).