Top Republicans are gearing up to investigate the Hunter Biden case. Here's what to know.

Hunter Biden talks with guests before President Joe Biden offers a toast during a State Dinner for India's Prime Minister Narendra Modi at the White House in Washington, June 22, 2023. The Republican chairmen of three key House committees are joining forces to probe the Justice Department's handling of charges against Hunter Biden after making sweeping claims about misconduct at the agency. (AP Photo/Susan Walsh)

The Republicans who lead three key House committees are joining forces to probe the Justice Department’s handling of charges against Hunter Biden after making sweeping claims about misconduct at the agency.

Leaders of the House Judiciary, Oversight and Accountability, and Ways and Means committees opened a joint investigation into the federal case into President Joe Biden’s youngest son days after it was announced last month that he will plead guilty to the misdemeanor tax offenses as part of an agreement with the Justice Department.

Reps. Jim Jordan of Ohio, James Comer of Kentucky and Jason Smith of Missouri have since issued a series of requests for voluntary testimony from senior officials at the Justice Department, FBI and Internal Revenue Service as they investigate what they claim is improper interference. Republicans have also requested a special counsel review of supposed retaliation against the whistleblowers who came forward with the claims.