Former Massachusetts Gov. Mitt Romney pulled off double victories in Tuesday's Arizona and Michigan primaries, but not without former Sen. Rick Santorum close at his heels.
All eyes were on Romney's home state of Michigan. An upset there would have been a big blow to the front-runner's campaign and likely shifted more attention to Santorum.
With 88 percent of precincts reporting in Michigan late Tuesday, Romney had 41 percent of the vote to Santorum's 38 percent. Romney also easily won Arizona, earning all 29 of the state's delegates.
"We didn't win by a lot, but we won by enough and that's all that counts," Romney said Tuesday night in Detroit.
"Our campaign is about more than just replacing a president. It's about restoring America's promise," he added.
CBN News Chief Political Correspondent David Brody has more on Romney's wins and the GOP campaign dynamics ahead of Super Tuesday, March 6. Click play for his analysis, followed by comments from CBN News Senior Editor John Waage.
Santorum also took time to thank his supporters.
"A month ago they didn't know who we are, but they do now," he said. "The people of Michigan looked into the hearts of the candidates. And all I can say is, 'I love you back.'"
Michigan Democrats were allowed to vote in the primary, and some took to the polls to vote for Santorum to create confusion in the Republican race.
Meanwhile, Rep. Ron Paul and former Speaker of the House Newt Gingrich showed poor results with 12 and 7 percent of the votes, respectively.
Gingrich and Paul have their eyes set on the March 6 races, where 419 delegates from 10 states are at stake.
Tuesday night, Gingrich focused on the must-win state of Georgia, telling voters it's possible to bring gas prices back down to $2.50 a gallon.
"First he can sign the Keystone Pipeline," Gingrich said, criticizing President Barack Obama's energy policy. "Second he could reopen the Gulf of Mexico to development and that's about 400,000 barrels a day. Third, he could open up the known areas of Alaska, that's about a 1,200,000 barrels a day."
"If we could be independent in producing energy, no American president would ever again bow to a Saudi king," he added.
A new Rasmussen Reports poll shows unexpected results in favor of Paul. The survey released Tuesday found that, although Paul has yet to win a GOP race this election season, voters would favor him in a head-to-head matchup with Obama by 43 to 41 percent.
The poll tied Romney with the president at 44 percent. Santorum placed three points behind Obama, while Gingrich lagged by 10 points in the hypothetical matchup.