The interest in getting to the bottom of the storming of Congress is once again splitting the political establishment in Washington.
Initially, there were many demands, from both sides, to investigate and map what preceded the dramatic day of 6 January.
What discussions were there on social media?
What message did the protesters listen to?
Were there foreign interests that influenced the situation?
And what responsibility can be placed on the country's former president, Donald Trump?
But over time, more and more Republicans have become hesitant about an investigation.
Unexpected support in the "house"
The vote in the House of Representatives was in part a success for the Democratic Party.
35 Republicans voted for an independent commission to review what happened.
Remember that "only" 10 Republicans broke the party line when the House of Representatives voted to bring Donald Trump to justice.
This time, many of the congressmen were both witnesses and victims of what happened and therefore there was a majority to put a puzzle around what happened, find out where the responsibility may lie and clarify how the security around the congress can be improved.
Stop in the Senate
Senate Minority Leader Mitch McConnell said early on that he opposed a commission.
The reason was that McConnell believed that the investigation had only two purposes: to harm Donald Trump and to try to influence the outcome of the important 2022 midterm elections.
Even the more center-right Republicans felt that they had too little influence over what the proposal for a commission would look like and the fact that there was initially no end date for the commission's work was further proof that the Democrats' plan was to spill the investigation on the election campaign.
In addition, such a serious and extensive review would occupy much of the "political oxygen" in Washington.
Trump negative
In his comments, Donald Trump has been in favor of an independent commission, which has received its job description from the Democratic Party.
Voices are also being raised among many Republicans that the investigation would in many ways only resemble the Supreme Court indictment, in which Trump was acquitted just over three months ago.
And the party's heaviest leaders in the Republican Party agree that a commission does not add anything constructive.
This applies not least to minority leader Kevin McCharty.
During the storm, he responded to a call from President Trump who in the middle of the riot is said to have wanted to discuss the vote on approving the result of the presidential election.
An upset McCharty is said to have shouted at Donald Trump: "who the fuck do you think you are talking to?"
A conversation that the Republican Party would rather forget and that the Commission certainly wanted to hear from Kevin McCarthy - in detail.