PoliticsUS midterms: With deep-red states now in play, could a blue wave redraw America's political landscape?

As the US approaches a potentially consequential midterm election, its political landscape appears to be shifting. Alison Sargent speaks with Richard Johnson of Queen Mary University of London about the prospect of a sweeping Democratic victory. Johnson says the party could make gains on a scale not seen since Barack Obama's historic 2008 presidential election.