VOTE 2012 -- February 28, 2012 at 10:56 PM ET
After Arizona Victory, Romney Wins Michigan Primary 'by Enough'
Watch his full speech:
See the county-by-county results from Tuesday's primaries in the NewsHour's Vote 2012 Map Center.
After Romney won Arizona's Republican presidential primary Tuesday, Gwen Ifill and Bill Ballenger of Inside Michigan Politics examined the state of play in the GOP field.
Syndicated columnist Mark Shields and New York Times columnist David Brooks discussed Romney's win in Arizona and what the results mean for the rest of the GOP field, including Rick Santorum, on Super Tuesday.
Also, check out video of the other candidates' speeches:
Texas Rep. Ron Paul
We'll have much more analysis of Tuesday's primaries on The Morning Line and the NewsHour broadcast.