Bernie Sanders is not conceding Iowa to Hillary Clinton
The final vote count in the state showed Clinton winning the caucuses by a razor-thin margin
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The final vote count in the state showed Clinton winning the caucuses by a razor-thin margin
The Iowa Democratic Party released the final results showing she won two more state delegate equivalents than Sanders
Republicans came out in historic numbers, but Democrats fell short of their 2008 record
The first step in nominating a presidential candidate from each party
The best photos of Election 2016
"We are in this for the long haul," the Democratic presidential candidate said
Frustration with stagnant incomes and ineffective politicians is pushing voters to extremely different conclusions
The Vermont senator is continuing to bring in mostly small-dollar donations; his campaign takes shot at Clinton's fundraising machine
Vice President Joe Biden also called the GOP primary race "a gift from the Lord"
They both say they want more debates but differ on how to add them
The Democratic candidate released new ads that zero in on those qualities ahead of the Feb. 1 Iowa caucus
The New Hampshire Union Leader says it is partnering with MSNBC to host one more Democratic debate, even without DNC approval
With the caucus just a week away, the Vermont senator has caught Clinton in the polls
The latest CBS News Battleground Tracker has the Vermont senator tied or ahead in Iowa and New Hampshire but falling behind after that
The latest squabble between the two presidential candidates has to do with who is the true political outsider
The Democratic presidential candidate is honing in on Sanders' foreign policy and health care proposals
In a bid to challenge rival Hillary Clinton in the final days leading up to the caucus, Sanders hits the road
The Democratic presidential candidate defended his new health care plan in an interview with CBS News
The candidates' appearance in Columbia was likely to be the last before the candidates return to South Carolina ahead of the Feb. 27 primary
The leading Democratic candidate has been pushing her rival to take a stronger stance in favor of gun control
The Vermont senator took on both Donald Trump and Hillary Clinton in a "Face the Nation" interview
Clinton's current fade revives vivid memories of 2008 when her commanding lead in Iowa slipped away
The vice president said Hillary Clinton's rival has "authenticity" on the income gaps
Clinton's campaign has been going after Sanders for his record on gun control
The former president hit the campaign trail to stump for his wife for the first time