Watch the special expanded series finale online now.
Thousands gathered in Washington, D.C., calling for stiffer gun control in the wake of the shooting massacre at Sandy Hook Elementary in Newtown. NBC's Kristen Welker reports. (Nightly News)
The President called for a temporary one-year extension of the Bush-era tax cuts for households making less than $250,000 a year – a move slammed by opponent Mitt Romney. NBC's Chuck Todd reports. (Nightly News)
Entrepreneurs Brittany Hodak and Kim Kaupe say it was "terrifying" to start their own company, explaining they had to fend for themselves since there was "no roadmap" to follow.
Msnbc's Alex Witt talks Democratic strategist Richard Socarides, who says President Obama need to act more boldly to improve gay rights.