CBS News poll: Americans remain divided on Trump impeachment

Ahead of Wednesday's public impeachment hearings, a CBS News poll finds more than half of Americans approve of the inquiry into President Trump. However, a majority of Americans are unhappy with how the probe is being handled by both Democrats in Congress as well as President Trump. CBS News director of elections and surveys Anthony Salvanto joins CBSN's "Red & Blue" to break down the numbers and discuss how both parties could try to sway public opinion.