A year ago this week, a mob stormed the US Capitol in an attempt to disrupt the certification of Joe Biden's election victory.

In a speech marking the anniversary of the attack, Biden heavily criticized his predecessor, warning that democracy is at risk.

How vulnerable is the country to another Jan. 6?

Host Zhao Ying spoke with Prof. Lisa Parshall from Daemen College, Prof. Charles Zelden from Nova Southeastern University and Aaron Kall, Director of Debate at University of Michigan.