There's always been a reasonable chance the US Supreme court could decide the race between Donald Trump and Joe Biden. A few days ago, it underwent a tectonic shift when Ruth Bader Ginsberg died. And now the ideological balance of the court that settles America’s most bitter fights is up for grabs. So what happens next, and what does it mean for the election? USSC non-resident senior fellow Bruce Wolpe spoke to ABC's The Signal.