Trump Issues Twitter Threat To Cruz; Clinton, Sanders Jockey For Black Votes In South CarolinaOn Friday, he pulled, well, a “Donald Trump,” which naturally began with a tweet that was not so sweet aimed at Texas Sen. Ted Cruz.
Hillary Clinton Brushes Off Trump's Swipes At BillThe Democratic presidential front-runner says Republicans have a history of trying to dig up dirt on the Clintons, and if they want to recycle that now, that's their business.
Clinton: US Must Push Arab Leaders To Confront Islamic StateIn a sweeping address to the Council on Foreign Relations in New York, the front-runner for the Democratic presidential nomination laid out her vision for how to heighten pressure on the Islamic State and combat terrorism at home.
Hillary Clinton On Colbert: Middle Class Needs To Be 'Center Of Our Politics'Hillary Rodham Clinton defended the middle class, and called for addressing economic inequality and financial reform, as she appeared on “The Late Show with Stephen Colbert” Tuesday night.
AP Source: De Blasio To Endorse Clinton For PresidentThe mayor initially refused to endorse Clinton, saying he needed to hear more detailed policies, most notably about income inequality.
Clinton, Sanders Look To Build On Debate PerformancesHillary Rodham Clinton and Bernie Sanders are looking to build on their strong Democratic presidential debate performances, while three other Democratic candidates are still struggling for traction.
Clinton, Sanders Rivalry Hits Spotlight At First Democratic Presidential DebateHillary Clinton and Bernie Sanders sparred on policy positions -- but sometimes came out in agreement -- as the 2016 Democratic presidential candidates held their first debate Tuesday night.
CBS News Poll: GOP Field Has A Lot Of Ground To Gain On Trump, CarsonTrump remains the GOP front-runner, holding steady in the poll, released Sunday, with the same 27 percent support he saw last month.
Emails: Russia-Linked Hackers Repeatedly Tried To Get Into Hillary Clinton's AccountRussia-linked hackers tried at least five times to pry into Hillary Rodham Clinton's private email account while she was secretary of state, emails released Wednesday show.
Officials: Hillary Clinton Emails To Petraeus Weren't Turned OverRepublicans have raised questions about thousands of emails that she has deleted on grounds that they were private in nature.
Biotech Stocks Tumble After Hillary Clinton Fires Off Tweet On 'Skyrocketing' Drug CostsThe plan, which she will discuss in Iowa on Tuesday, would cap how much a person pays out of pocket each month on medications.
Hillary Clinton Apologizes For Use Of Private Email ServerHillary Rodham Clinton apologized Tuesday for her use of a private email account, after declining since last week to express remorse for the State Department arrangement that has shaken her presidential campaign.

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