One year into Trump 2.0: How the world has changed

In just 12 months, Donald Trump has transformed the presidency—and the world. He returned to the White House with fewer constraints and a more muscular view of foreign policy. Stephen Walt, professor of international affairs at Harvard’s Kennedy School joins Ian Bremmer on GZERO World for a look at President Trump’s first year back in office and what comes next.

President Trump has been able to swiftly reshape the government to fit his worldview. The presidency is more powerful. Alliances are more conditional. And the rules of the global order are being redefined in real time. Is this a permanent rewrite of how the United States uses power going forward? This week on GZERO World, one-year check-in on Trump’s second act and what it’s already changed, both at home and abroad.“There’s a big shift that’s gone on with the Trump administration. "In a sense, he’s engaged with acts of predation against everyone,” Walt says, “Europeans have to ask themselves if they really can not just not count on American protection, but actually have to worry about the United States as a serious adversary.”