The lawmakers said they will seek legal action against companies that comply with the January 6 committee’s requests.
The House minority leader has been guarded about a phone call with Donald Trump on the day of the Capitol attack.
The matter of Trump’s communications records from that day will likely be dragged out in the courts by Trump’s lawyers.
The committee sent letters seeking a range of information, including Trump’s schedule and correspondence that day.
The probe could have major implications for members of Congress with ties to the attack.
Whitehouse urged the commission to also examine whether any members of Congress helped aid the breach of the Capitol.
The call logs may signal who might be subpoenaed to uncover what was discussed with Trump during the Capitol attack.
Journalist Grant Stern asked McCarthy why he opposed the formation of a commission to investigate the Capitol attack.
Rather than try to prove themselves innocent, Republicans are following Trump’s lead to discredit the commission itself.
Details over Trump’s pressure campaign on Rosen could be investigated by the January 6 commission.