The House committee investigating the January 6th attack on the U.S. Capitol subpoenaed three Trump associates on Tuesday, including Ross Worthington, the aide who helped write the former president’s infamous “fight like hell” speech.

“The speech had been key to the House’s impeachment of Trump for incitement of an insurrection. Many of the protesters in attendance began walking toward the Capitol as he delivered it,” reports CBS News.

January 6 panel subpoenas former White House official who helped draft the speech Donald Trump delivered prior to the attack where he called on his supporters to march to the US Capitol https://t.co/Bd49ABoLgI

— CNN Politics (@CNNPolitics) January 12, 2022

CNN adds:

In the subpoena letter, the panel says it wants to speak with Worthington about lines in Trump’s speech that falsely claim that the 2020 election was stolen and potentially incited violence.

The committee highlights the lines of Trump’s speech where he told his supporters to “fight much harder” and “stop the steal.” The letter also references the section of the former President’s speech where he encouraged attendees to march to the Capitol and said, “I’ll be there with you.”

Trump-linked political strategists Andy Surabian and Arthur Schwartz were also subpoenaed.

The Guardian reports:

[Congressman Bennie Thompson (D-MS), the chairman of the House committee] said in the subpoena letters to Surabian and Schwartz that they were targeted since they appeared to have repeated communication with some of the top organizers and speakers at the rally, including Trump’s eldest son Don Jr, and his fiance Kimberly Guilfoyle.

The chairman added that they also had contacts that touched on securing the participation of far-right activists such as Ali Alexander and Alex Jones at the rally, discussed media coverage of the rally, and appearance fees for others who did speak at the rally.

“The select committee is seeking information from individuals who were involved with the rally,” Thompson said. “Protests that day escalated into an attack on our democracy. Protesters became rioters who carried out a violent attempt to derail the peaceful transfer of power.”

The House committee has subpoenaed over 50 witnesses and has spoken to hundreds more.

CNN reported Wednesday morning that the committee is contemplating issuing subpoenas to several members of Congress, including Reps. Scott Perry of Pennsylvania and Jim Jordan of Ohio, both Republicans.

Thompson also told CNN that the committee will seek testimony from Trump lawyer Rudy Giuliani.

When pressed by CNN on whether the committee plans to talk to Giuliani at some point, Thompson replied: “At some point, absolutely.”

Asked if the committee will subpoena Giuliani, Thompson said the panel is “working through the process.”

— Zachary Cohen (@ZcohenCNN) January 11, 2022

Asked if he plans on issuing a subpoena to Giuliani, Thompson responded that the panel is “working through the process.”