Can a black progressive upset the race to unseat Mitch McConnell?

Charles Booker is less of a long shot to beat Amy McGrath, a centrist former air force pilot, as the Democrats' pick for a Kentucky Senate seat after weeks of anti-racist protests

Amy McGrath's nomination was supposed to be a done deal.

In the 24 hours after she announced her candidacy last July, the former marine fighter pilot raised $2.5m, a record for a Democratic Senate candidate. She had name recognition from a failed 2018 congressional bid and became more familiar soon when she was hosted on late-night comedy shows, held up as the person who could finally unseat the Senate majority leader - and liberal bete noire - Mitch McConnell.