“There’s no precedent” for Trump’s election lawsuits, law professor says

Lawyers for the Trump campaign have asked a judge to halt Pennsylvania’s election results certification, despite there being no meaningful evidence of voting irregularities. Richard Griffault, the Joseph P. Chamberlain Professor of Legislation at Columbia Law School, joins CBSN’s Anne-Marie Green to talk about the legal election challenges in a historical perspective, and the constitutional milestones ahead on the road to Inauguration Day.