"There is little cultural overlap between violent extremists abroad and violent extremists at home," he said.
"But in their disdain for pluralism, in their disregard for human life, in their determination to defile national symbols, they are children of the same foul spirit.".
"And it is our continuing duty to confront them," Bush added.
Democrats and other critics of Trump quickly praised the former Republican president's apparent linking of January 6 to September 11.
"George W. Bush is right—we must always remain vigilant against terrorist extremists both at home and abroad.
"George Bush has been a skid mark on this nation for some time.
Bush has previously been outspoken about condemning the Capitol rioters and Republican politicians that have supported them. »