Donald Trump, unbowed, is enacting change on scale rarely seen before

And it's only been 77 days. No American president has disrupted so many aspects of the nation's daily life as President Trump has in less than three months in office.

- Aaron Zitner, Alex Leary & Rachel Louise Ensign

His no-apologies agenda has made him the focal point of crucial decisions now being made in America's C-suites, on factory floors, in faculty lounges, elementary-school libraries and capitals around the world—as well as around kitchen tables across the U.S.

He has moved with astonishing speed to enact an immigration crackdown, cut the federal workforce and demolish federal agencies. He is checking off a list of perceived enemies, firing people at will and slashing at major law firms that some advisers allege once aided investigations into his actions. Asserting a broad mandate, Trump has worked with little regard for public criticism. In typical is-he-serious-or-not form, Trump now flirts with seeking a third term.

"He's going after all these targets with a sense of presidential power that is unbound," said Princeton historian Julian Zelizer. "Where this goes next is a mystery."

In many ways Trump is doing what he said he would on the campaign trail, and aspects of his agenda, including deportations, have broad public appeal. But the collective impact has been dizzying for many.

Trump's tariffs—an effort to reshape the global trading system—have put many Americans in a defensive pose as they decide how to handle the likelihood of higher prices and a rout in the market that wiped out $6.6 trillion in market value last week. Foreign governments are deciding whether to fight or negotiate new tariffs or accede. America's allies and adversaries are reviewing their military spending as they consider a world in which Trump uses America's military and economic muscle to squeeze every advantage from other countries at the expense of U.S. alliances.