DONALD TRUMP

John Oliver estimated that Donald Trump’s proposed wall on the US-Mexico border would cost $25 billion on HBO’s “Last Week Tonight.”

The woman’s front read “HATE SPEECH IS NOT FREE SPEECH,” in protest of the Republican front-runner.

GOP front-runner Donald Trump and former Secretary of State Hillary Clinton are speaking to the pro-Israel advocacy group Monday.

Iran will need approximately $500 billion to modernize its infrastructure after years of economic sanctions.

Rallies for Republican front-runner Donald Trump have increasingly turned violent in recent weeks.

That's right, a day dedicated to being abducted by aliens is finally upon us. Believe.

At a Saturday event for Donald Trump in Tucson, Arizona, someone kicked and punched a protester in the crowd.

The former GOP presidential nominee endorsed Ted Cruz for next week's Utah caucus, and said he favored an open convention in July.

The Democratic presidential hopeful said Friday that he'll be too busy campaigning out West. But that might not be the only reason.

Donald Trump could get a boost in upcoming primary states thanks to an ad buy from a friendly super PAC.

Some television ads have been more effective than others in swaying Republicans and independent voters away from Donald Trump.

Trump is outpacing his GOP rivals in his home state, but is well behind both Democrats in surveys there.

Jack Dorsey spoke on the "Today" show Friday about his company's 10th anniversary.

Geert Wilders and other populist politicians, including Donald Trump in the U.S., have won support by calling for bans on Muslim immigration.

The Secret Service, FBI and NYPD are currently investigating the letter containing a white powdered substance, a source told CBS News.

The two senators' voting records seem similar, but they disagree on key issues such as immigration reform. 

During presidential election years, the side experiencing less infighting was more likely to emerge victorious in November, a study says.

The former Ku Klux Klan leader said he thinks comparisons of Republican presidential front-runner Donald Trump to Adolf Hitler are not hurting the candidate.

The Republican presidential hopeful's group includes former Bush administration staffers and members of a controversial think tank.

The Bernie Sanders campaign says pledged delegates can switch their allegiance, but experts say that is unlikely to happen.

Ryan said he isn't looking to become the GOP presidential nominee if no candidate can secure the necessary 1,237 delegates before the July nominating convention in Cleveland.