At the G7, President Biden brought American engagement with the world back to levels that used to be the norm. The United States playing an indispensable role in leading the world was never questioned until Donald Trump became president. The question now becomes how long is America back for, asks former US ambassador to NATO, Ivo Daalder, who also raises the point: "Is the kind of way the United States has engaged the world still the appropriate way for dealing with the challenge we have?" Daalder speaks with Ian Bremmer on GZERO World about Biden's first presidential trip to Europe and the reception he received from European leaders.

Watch the GZERO World episode: Has Biden convinced the G7 "America is back"?