Then-deputy national security adviser Matthew Pottinger looks on as then-President Donald Trump speaks in the Oval Office of the White House in September 2020.
Mandatory Credit:	Andrew Caballero-Reynolds/AFP/Getty Images

Then-deputy national security adviser Matthew Pottinger looks on as then-President Donald Trump speaks in the Oval Office of the White House in September 2020.
Mandatory Credit: Andrew Caballero-Reynolds/AFP/Getty Images

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First on CNN: Former Trump National Security Council official will testify at Thursday's January 6 hearing

Matthew Pottinger, who served on former President Donald Trump's National Security Council before resigning in the immediate aftermath of January 6, 2021, will testify publicly at Thursday's prime-time hearing held by the House select committee investigating the US Capitol attack, according to multiple sources familiar with the plans.