Was the 2008 Democratic primary battle as bitter as this one?
Then-Sen. Barack Obama and Hillary Clinton waged a nasty primary battle eight years ago, but observers say they stopped the attacks earlier in the process
Hillary Clinton
CBS/NYT national poll: Hillary Clinton's lead over Donald Trump narrows
Sanders would lead Trump by a larger margin than Clinton, but his margin is also lower than last month
CBS/NYT poll: How do voters view Trump and Clinton?
Voters were asked for their opinions of Trump and Clinton, as well as whether they thought the candidates shared their values
The moment Kennedy admitted he wouldn't be the 1980 Dem nominee
Some Democrats worry they see echoes of the divisive battle between Carter and Kennedy in the 2016 race between Sanders and Clinton
Clinton: I will be the nominee
Former secretary of state says there's zero chance she loses the Democratic nomination
Clinton on EgyptAir crash: Appears to be "act of terrorism"
The former secretary of state also fielded a question about whether Donald Trump is fit to be president
Biden: Sanders should be "aggressive" in condemning backers' attacks
The comments come after an unruly state convention in Nevada
Democrats pressure Bernie Sanders after Nevada convention
The Democratic Party is growing increasingly divided after a state convention last weekend erupted into chaos
Top Clinton backer: Sanders not pushing for violence
McCaskill on "CBS This Morning" said Democratic party leaders were "upset" by Nevada state convention hostility but said Sanders was not to blame
Poll: Trump surpasses Clinton nationally
Fox News poll finds Bernie Sanders performs better against Trump in a head-to-head matchup
Commentary: Why #NeverTrump failed
Conservatives who oppose Trump turn to hashtag activism in lieu of anything meaningful
Donald Trump uses the word "rape" to talk about Bill Clinton
Trump was being interviewed by Fox News' Sean Hannity
Former Pa. gov: More "ugly women" than "attractive women" in U.S.
Ed Rendell, also a former Philadelphia mayor, made the comments in a story about Donald Trump's appeal in the Philadelphia suburbs
2016 by the numbers: Trump within striking distance of Clinton
Recent polls show a close race between Hillary Clinton and Donald Trump - is Clinton's continued primary slog taking a toll?
James Clapper: Hackers targeting 2016 candidates
Director of National Intelligence James Clapper said the government is working to educate campaigns about cyber threats
Donald Trump: "no problem" talking to Kim Jong Un
Trump talked about his foreign policy approach to Britain, Russia, and climate change, among other issues, in an interview with Reuters
Clinton, Sanders appear to split KY and OR primaries; their battle intensifies
Though the math looks strongly against Bernie Sanders at this point in the primaries, his supporters are only ramping up their ire at the national Democratic Party
Clinton likely winner in Ky.; Sanders wins in Ore.
The margin between Clinton and Bernie Sanders in Kentucky is still razor-thin with Clinton ahead, while Sanders picked up a win in Oregon
Trump claims he made over $557 million in 2015
Trump called his disclosure "the largest in the history of the FEC"
Filing shows Hillary Clinton earned at least $6.4 million in 2015
She earned more than Bill Clinton last year, her financial disclosure says
Sanders, Dem leaders at odds over Nevada convention scuffles
In a statement Tuesday, Sanders questioned the fairness of Democratic Party practices in Nevada
Who's voting in the Democratic primaries?
CBS News culled the key findings from exit polls throughout the 2016 race for Democrats
CBS News Delegate Estimate - Heading into KY and OR
Kentucky is holding only a Democratic primary Tuesday while Oregon is holding primaries for both parties
Donald Trump claims ad misquotes him, but he's not exactly right
Trump accused a pro-Hillary Clinton super PAC of misquoting him in an ad
Sanders blitzes Puerto Rico ahead of primary contest
Vermont senator barnstorms territory, promises vote on independence
Musk chose to restrict Ukraine's access to SpaceX network, sources say
Live
Iran touts closest ever ties with Russia, contradicting Trump
Cornell responds to Jane Doe letter saying she felt disbelieved
Christina Applegate reveals she was misdiagnosed with MS
Ohio race takes ugly turn with ad featuring Amy Acton's mother
French government extends curfews after riots sweep across the country
Hegseth meets Netanyahu ahead of elections, possible Iran war restart
Up to 20% of MS diagnoses may be wrong, like Christina Applegate's
