Rep. Adam Schiff (D-CA) signaled that the House select committee could potentially subpoena Donald Trump and Mike Pence.
The California Democrat told the New York Times' "Sway" podcast that the panel investigating the Jan. 6 insurrection could go all the way to the top of the previous administration by ordering the former president and vice president to testify about their actions before and during the deadly riot.
"No one is off the table," Schiff told the podcast. "Donald Trump gave a daily dose of poison to the body politic."
The committee has already issued subpoenas to former White House chief of staff Mark Meadows, former deputy chief of staff Dan Scavino, ex-adviser Steve Bannon and Department of Defense official Kash Patel.
"These are four important witnesses," Schiff said. "They're all very close to the former president. Some were in direct communication with him on Jan. 5, on Jan. 6. They are reportedly in communication about how to overturn the results of the election."
The lawmaker told CNN those four witnesses could help "direct our focus on others."
"We'll determine what went wrong in the lead-up to Jan. 6 and we're going to find out who was involved and who was knowledgeable and what roles they played in the planning, what expectation they had of violence, and what the former president was doing," Schiff said. "Among the biggest unknowns is what was going on within the White House on Jan. 5 and 6 at that critical time, when our democracy was being threatened with a violent insurrection, so we're not wasting time … we've made a lot of strides in requiring documents that we need for the investigation."