The CNN Washington Bureau’s morning speed read of the top stories making news from around the country and the world. Click on the headlines for more.
CNN: More than delegates at stake in Arizona, Michigan primaries
In an election cycle that's seen more than its fair share of ups and downs, crucial primaries Tuesday in Arizona and especially Michigan could add a lot more drama to the race for the Republican presidential nomination.
CNN: Romney hits Santorum robo calls as ‘new low’ in campaign
Mitt Romney on Monday night kicked back against Republican presidential rival Rick Santorum for urging Democrats to vote against Romney in Michigan's primary.
CNN: Pastor backing Santorum claims Romney is not a Christian
A Michigan pastor who introduced Rick Santorum at a Monday campaign event in Lansing claimed that Mitt Romney is not a Christian and said Santorum is the one Republican candidate who can awaken "the sleeping giant" of Christianity.
CNN: Santorum: High gas prices caused the recession
Rick Santorum argued Monday that it was high gas prices, not dubious lending practices or complex Wall Street trades, which torpedoed the housing market in 2008 and brought on the current prolonged economic slump.
CNN: Ohio town, students grieve after 1 killed, 4 hurt in high school shooting
Four students spent the night in local hospitals for gunshot wounds - two in critical condition at MetroHealth Medical Center in Cleveland, and one in serious condition and another in stable condition at Hillcrest Hospital in Mayfield Heights, Chardon police Chief Police Chief Tim McKenna said late Monday afternoon. They all had been in the Chardon High School cafeteria on Monday morning, when two witnesses saw another student they later identified as T.J. Lane walk up to a table and start firing.
CNN: Bodies of slain U.S. officers return home
Air Force Lt. Col. John Loftis and Army Maj. Robert Marchanti II were gunned down Friday when an Afghan intelligence officer turned his gun on them inside the ministry, an Afghan counter-terrorism official told CNN. Loftis was a career Air Force officer, while Marchanti was a veteran of Maryland's National Guard.
President Barack Obama told U.S. governors attending a luncheon Monday that they are cutting too much funding for education and need to make reforms while continuing to invest in the future of America's students.
Matt Kenseth scored his second Daytona 500 victory in the last four years, taking the checkered flag at 1 a.m. ET to end the longest Speedweeks in Daytona history.
A plot to assassinate Russian Prime Minister Vladimir Putin has been foiled, Russia's state-run Channel One TV reported Monday, less than a week before presidential elections that Putin is expected to win.
As the death toll from Syria's almost year-long uprising continues to climb, Syrian Foreign Minister Walid Moallem vowed to defend his country's "independence."
North Korea said it's ready to fight a war with the United States and South Korea, as the two allies kicked off their annual joint military drills Monday, according to state-run media.
Afghan President Hamid Karzai condemned a suicide bombing Monday at a military airfield, the latest incident in a spike in violence after the burning of Qurans by NATO troops last week.
Wall Street is pushing to stop a new rule that would crack down on speculation in the energy markets, which many blame for contributing to the spike in gas prices.
CNN Money: America’s oil boom – at a cost
A study last year commissioned by the American Petroleum Institute said that if every piece of federal land - excluding national parks - was open for drilling, North America could produce an additional 10 million barrels of oil a day by 2030.
Standard & Poor's downgraded Greece's credit rating Monday to "selective default" after the government took legal steps to impose losses on all holders of Greek government bonds.
Authorities have moved in and cleared out the occupy London encampment.