Transcript for Nancy Pelosi blocks 2 Republicans from bipartisan committee after Capitol riots
drama over attempts to investigate the January 6th siege of the capitol. House speaker Nancy Pelosi has barred two Republicans from the committee calling them compromised prompting the Republican leadership to abandon the panel. Congressional correspondent Rachel Scott on capitol hill with the latest. Good morning, Rachel. Reporter: Good morning. House speaker Nancy Pelosi says those two Republicans threaten the integrity of the investigation and wanted them out. Her decision only deepening the partisan divide just days before that first hearing gets under way. This morning, Republican leader Kevin Mccarthy threatening to boycott the January 6th select committee after house speaker Nancy Pelosi blocked two Republicans from the panel. Unless speaker Pelosi reverses course and seats all five Republicans, we will not participate. Reporter: Mccarthy calling it an egregious abuse of power. Why not appoint two new Republicans? Reporter: Pelosi saying the unprecedented decision was necessary rejecting representatives Jim banks of Indiana and Jim Jordan of Ohio, two out of the five representatives Mccarthy picked. Pelosi pointing to their past actions and statements, both voted to overturn the results of the election. They just want to continue to attack the former president and want to play their political games. Reporter: In may Republicans chose to block an independent bipartisan commission to investigate the capitol siege. Overnight president Biden slamming GOP lawmakers who have tried to downplay the insurrection. I don't care if you think I'm Satan reincarnated, the fact is, you can't look at that television and say, nothing happened on the 6th. Reporter: Democrats say the investigation will go on. Moving forward with a select committee. We have a bipartisan quorum. Reporter: One Republican determined to stay on the panel, congresswoman Liz Cheney. She voted to impeach the former president. At every opportunity, the minority leader has attempted to prevent the American people from understanding what happened to block this investigation. Reporter: The committee will still hold its first hearing next week starting with the testimony of four officers who defended the capitol on January 6th. Leader Mccarthy says Republicans will launch their own investigation but refuse to provide any other details. Criminal investigations going on as well. Thanks very much.
This transcript has been automatically generated and may not be 100% accurate.