When Congress convenes on Jan. 6 to certify the electoral college vote, President Trump's allies will mount a final challenge to Joe Biden’s win. But history shows it's unlikely to make a difference, as Capitol Hill reporter Rhonda Colvin explains. Read more: https://wapo.st/3beF5p0. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK Follow us: Twitter: https://twitter.com/washingtonpost Instagram: https://www.instagram.com/washingtonpost/ Facebook: https://www.facebook.com/washingtonpost/