Happy Super Tuesday! There are 424 delegates up for grabs in 11 states, and all eyes are on Ohio. MSNBC's special coverage with Lawrence O'Donnell and the rest of the MSNBC crew starts at 6pm ET.
- Mitt Romney focuses on economy, while rivals seek openings
- Romney gets silly on Iran
- President Obama blasts GOP for 'casual' talk on Iran
Obama to Romney: 'Good luck tonight' - Super PACs already spending $3 million on post-Super Tuesday ads
- Rick Santorum's delegate disadvantage
- Newt Gingrich running on bitterness and $2.50 gas
- Santorum and Romney court blue-collar voters in Ohio
- Super Tuesday brings out candidates’ true selves
- Why Steubenville? Close to Santorum’s roots
- Obama: Women are not 'single-issue voters
