(Reuters) - Ninety Democrats in the U.S. House of Representatives as of early this week have said they support starting impeachment investigations against Republican President Donald Trump.

FILE PHOTO: U.S. President Donald Trump addresses Turning Point USA's Teen Student Action Summit in Washington, U.S. July 23, 2019. REUTERS/Jonathan Ernst

With congressional testimony set for Wednesday by former U.S. Special Counsel Robert Mueller, who investigated Trump and

the Russians who interfered in the 2016 presidential election to help him, more than a third of the 235-member Democratic caucus in the House now favors initiating an impeachment probe.

That group includes representatives from 28 states. The largest group comes from California, where 19 of 46 Democratic representatives support an impeachment probe.

Here are the House Democrats who have expressed public support for starting impeachment investigations:

Ann Kirkpatrick, Arizona

Raúl Grijalva, Arizona

Greg Stanton, Arizona

Ruben Gallego, Arizona

Alan Lowenthal, California

Barbara Lee, California

Eric Swalwell, California

Grace Napolitano, California

Jackie Speier, California

Jared Huffman, California

Jimmy Gomez, California

Juan Vargas, California

Lucille Roybal-Allard, California

Mark DeSaulnier, California

Maxine Waters, California

Nanette Barragán, California

Norma Torres, California

Ted Lieu, California

Tony Cárdenas, California

Katie Porter, California

Harley Rouda, California

Scott Peters, California

Doris Matsui, California

Diana DeGette, Colorado

Joe Neguse, Colorado

Jim Himes, Connecticut

Val Demings, Florida

Debbie Mucarsel-Powell, Florida

Danny K. Davis, Illinois

Jan Schakowsky, Illinois

Jesús García, Illinois

Robin Kelly, Illinois

Bobby Rush, Illinois

Mike Quigley, Illinois

Sean Casten, Illinois

John Yarmuth, Kentucky

Cedric Richmond, Louisiana

Ayanna Pressley, Massachusetts

Jim McGovern, Massachusetts

Joseph Kennedy, Massachusetts

Seth Moulton, Massachusetts

Jamie Raskin, Maryland

Chellie Pingree, Maine

Andy Levin, Michigan

Brenda Lawrence, Michigan

Daniel Kildee, Michigan

Rashida Tlaib, Michigan

Betty McCollum, Minnesota

Ilhan Omar, Minnesota

William Lacy Clay, Missouri

Bennie Thompson, Mississippi

Bill Pascrell, New Jersey

Bonnie Watson Coleman, New Jersey

Donald Norcross, New Jersey

Tom Malinowski, New Jersey

Adriano Espaillat, New York

Alexandria Ocasio-Cortez, New York

Carolyn Maloney, New York

Nydia Velázquez, New York

Paul Tonko, New York

Yvette Clarke, New York

Kathleen Rice, New York

Brian Higgins, New York

Alma Adams, North Carolina

G.K. Butterfield, North Carolina

Joyce Beatty, Ohio

Tim Ryan, Ohio

Marcia Fudge, Ohio

Earl Blumenauer, Oregon

Suzanne Bonamici, Oregon

Brendan Boyle, Pennsylvania

Dwight Evans, Pennsylvania

Madeleine Dean, Pennsylvania

Mary Gay Scanlon, Pennsylvania

Mike Doyle, Pennsylvania

David Cicilline, Rhode Island

Steve Cohen, Tennessee

Al Green, Texas

Filemon Vela, Texas

Joaquin Castro, Texas

Lloyd Doggett, Texas

Veronica Escobar, Texas

Peter Welch, Vermont

Don Beyer, Virginia

Pramila Jayapal, Washington

Rick Larsen, Washington

Adam Smith, Washington

Gwen Moore, Wisconsin

Mark Pocan, Wisconsin