Former Pence aide: Trump has 'descended deeper into the heart of darkness'

On CNN's State of the Union, Dana Bash speaks with Mike Pence's former Chief of Staff Marc Short, Democratic strategist Hilary Rosen, Republican pollster Kristen Soltis Anderson and CNN Political Commentator Ashley Allison about their predictions for the Georgia Senate runoff race, as well as former President Trump's dinner with White nationalist Nick Fuentes and rapper Kanye West.