The House select committee investigating the January 6 insurrection at the US Capitol moved on Tuesday to issue subpoenas to 10 Trump administration officials, including former senior adviser Stephen Miller and press secretary Kayleigh McEnany, expanding its inquiry into Donald Trump’s involvement in circumstances surrounding the attack.

The subpoenas demanding documents and testimony, coming a day after the select committee subpoenaed top Trump lieutenants accused of working to subvert the results of the 2020 election while working from the Willard hotel in Washington, are focused squarely on activities surrounding the White House.

House investigators targeted 10 senior Trump White House aides on Tuesday, most notably Miller, McEnany, former vice-president Mike Pence’s national security adviser Keith Kellog and the then White House personnel director, John McEntee.

The select committee also subpoenaed the former operations coordinator for the Oval Office, Molly Michael, Trump’s White House deputy chief of staff, Christopher Liddell, senior DoJ counsel Kenneth Klukowski, as well as top aides Cassidy Hutchinson, Ben Williamson and Nicholas Luna.

The Mississippi Democratic congressman Bennie Thompson, who chairs the select committee, said in a statement that he authorized the subpoenas to the Trump officials in order to “know precisely what role the former president and his aides played in efforts to stop the counting of the electoral votes”.

Thompson added the select committee also wanted the 10 Trump officials to help inform whether anyone outside the White House was involved in attempting to overturn the results of the 2020 election. “We believe the witnesses have relevant information.”

Extremist Trump supporters broke into the US Capitol on 6 January ostensibly to try to prevent congress certifying Joe Biden’s victory over Trump in the presidential election the previous November.