This statement alone is cause to remove the POTUS.
The President swears to uphold our Constitution. An honest & strong Congress would have removed him when he said “l don’t know”.
That would mean he would have to protect America. He would have to hire smart, competent, and experienced people to look after Americans. He would have to like all Americans. He would have to put America first. He's the true meaning of 'traitor'.
The white supremacist power structure that paved the way for Trump's ascension to the White House isn't confined to red states. The liberation of Black, Indigenous & other non-white people is required to truly defeat fascism. White people created the structure and we must 'pay for its removal'.