Looks like they just might be getting serious.
www.cnn.com
The House Select Committee investigating the January 6 Capitol attack requested a massive tranche of documents from several US government agencies -- signaling they intend to undertake a sprawling probe of security failures and attempts to overturn the 2020 election results.
This initial wave of document requests was sent to various executive branch agencies, including the departments of Homeland Security, Justice, Defense and Interior, the FBI, the National Counterterrorism Center and the Office of the National Intelligence as well as the National Archives, which has legal custody of all the presidential records from former President Donald Trump's time in office.

Trump makes executive privilege threat as House committee seeks documents from agencies on January 6 attack
Former President Donald Trump on Wednesday threatened to invoke executive privilege in an effort to block the House select committee investigating the January 6 Capitol riot from obtaining a massive tranche of documents it's demanding from several US government agencies, despite his successor...
The House Select Committee investigating the January 6 Capitol attack requested a massive tranche of documents from several US government agencies -- signaling they intend to undertake a sprawling probe of security failures and attempts to overturn the 2020 election results.
This initial wave of document requests was sent to various executive branch agencies, including the departments of Homeland Security, Justice, Defense and Interior, the FBI, the National Counterterrorism Center and the Office of the National Intelligence as well as the National Archives, which has legal custody of all the presidential records from former President Donald Trump's time in office.