Political polarization in the US isn’t just a problem within the country, points out former US national security official Fiona Hill. Deep divisions, she says, actually make America look weaker on the global stage — particularly to someone like Russia’s president Vladimir Putin.

“Putin loves our disunity," Russian expert Hill tells Ian Bremmer. "It's incredibly useful as a tool to exploit in that toolkit that he has.”

“Part of our problem, she adds, is how to deal with that. Her recipe? "Collective, coherent, concerted pushback."

Watch her full interview on this episode of GZERO World: American strife: Will US democracy survive? Fiona Hill explains post-Jan 6 stakes