Donald Trump wins Mississippi, Michigan; Cruz wins Idaho
Four states held GOP nominating contests on Tuesday night. Trump, Cruz, Kasich and Rubio fought for the 150 delegates at stake
Donald Trump
BBB explains ratings for Trump University
The organization showed Trump University ratings as low as a D- and as high as an A+
Portland man creates "Trump Has Tiny Hands" PAC
The PAC comes after Donald Trump and Marco Rubio engaged in personal attacks over the size of Trump's hands
Polls: Trump, Clinton continue to lead their fields nationally
The polls come ahead of four nominating contests on Tuesday
Donald Trump says he's "not happy" with comparisons to Hitler
The GOP frontrunner has recently asked his supporter to raise their right hands and pledge to vote for him
Mitt Romney records robocall for Marco Rubio, John Kasich
A spokesperson told CBS News that Romney has also offered to help John Kasich and Ted Cruz
How to watch tonight's four nominating contests
Michigan and Mississippi hold primaries for both parties while Idaho and Hawaii hold GOP-only caucuses
7 questions on Trump's foreign policy answered by a national security expert
CBS spoke to a national security expert who signed a letter slamming Trump's foreign policy ideas
How does a contested convention work?
There's been a lot of talk about what happens if no Republican has enough delegates to win the nomination outright--here's how it would work
Does Donald Trump deserve all the credit for remaking the GOP?
The Republican race so far by the numbers
Trump and Cruz eye one-on-one battle for GOP nomination
Cruz is working to line up several Republican Senate endorsements, an ironic twist for a candidate who has run an anti-establishment campaign
Michael Bloomberg rules out 2016 presidential run
The former mayor of New York City revealed his decision in a column for Bloomberg View
Mexican President compares Trump to Hitler and Mussolini
The Mexican leader also said there's "no scenario" in which Mexico would pay for Trump's proposed wall along the U.S.-Mexico border
Polls: Donald Trump leads the GOP field in Michigan, Florida
Michigan holds its primary on Tuesday, and Florida's primary is next week
What does Trump U.'s BBB rating really mean?
Whether Donald Trump's educational business earned an A, as he he claims, or a D- may be irrelevant
Documents reveal what Trump actually said about his university
Republican front-runner's critics say the next 10 days are key to stopping him, and they're betting Trump University is their best weapon
Sanders to Clinton during Democratic debate: "Excuse me, I'm talking"
The Vermont senator was looking for the kind of performance Sunday night that could change the dynamics of the race, but instead he stumbled over the auto bailout and gun control
2016 candidates share thoughts on Nancy Reagan
Amid a tumultuous campaign, candidates from both parties paused to remember the influential former first lady
GOP chair: Next debate needs a "PG rating"
RNC leader Reince Preibus told "Face the Nation" he would not rule out the possibility of a contested nominating convention this summer
Clinton: Email scandal "moving toward a resolution"
Former secretary of state tells "Face the Nation" it's good news that a former staffer was granted immunity to give an interview
Donald Trump: "I'm very much a unifier"
The GOP front-runner makes broad appeal to voters on "Face the Nation," saying he's "the last person" Hillary Clinton wants to face in November
Ted Cruz says he doesn't want a contested convention
Texas senator dismissed cries of the "establishment" on "Face the Nation," insisting on Trump: "you have to beat him at the ballot box"
Poll: Trump, Clinton lead in Michigan
CBS News survey of Republican primary voters say they're less likely to vote for any establishment candidates ahead of Tuesday's vote
Trump calls for Rubio to drop presidential bid
Trump and Cruz each won two states in Saturday's nomination contests. Rubio won none.
Trump: We need to change laws to allow torture
In a "Face the Nation" interview, GOP front-runner says "I will always abide by the law, but I would like to have the law expanded"
Oregon school shooter ID'd, used shotgun bought by mother, sources say
Katie Zacharia out as White House press secretary after first week
Hero bystander who took down Oregon school shooter comes forward
Vance says "selling access to the White House" is "disgusting"
5-year-old victim identified in Oregon school shooting
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Alleged Chinese agent has ties to scam group, records show
3 children, 1 teacher killed in Oregon school shooting, police say
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Iran's president denies nuclear ambitions, says he's ready for talks
