Sheldon Adelson and his wife donated to Ted Cruz

They both contributed the maximum amount to his campaign in November

• Feb 1, 2016

How to watch the Iowa caucuses tonight

The caucuses begin at 7 p.m. CT / 8 p.m. ET on Monday at 1,681 precincts across Iowa

• Feb 1, 2016

Clinton on Iowa caucus day: A "bit scarred up," but still standing

The Democratic candidate says she's "pumped up and enthusiastic" about her campaign, as she leads rival Bernie Sanders by three points in latest Iowa polls

• Feb 1, 2016

Jeb Bush struggles to stay relevant in 2016 race

Bush is scheduled to be in New Hampshire Monday evening during the Iowa caucuses

• Feb 1, 2016

Are presidential super PACs waning?

Many super PACs saw reduced hauls in the second half of 2015

• Feb 1, 2016

Quiz: Don't know much about the Iowa caucuses?

Iowa holds leadoff nominating contest of the 2016 election on Monday - but how much do you really know about the state's caucuses?

• Feb 1, 2016

Who's winning the Facebook primary?

Which candidates are dominating online chatter ahead of the Iowa caucuses?

• Feb 1, 2016

The Iowa caucuses: Who will win?

Turnout is likely to be the key to the caucuses -- some candidates will benefit from lower turnout. Here's a look at the state of the race

• Feb 1, 2016

John Kasich catches a break in New Hampshire

GOP presidential hopeful benefits in unlikely way from stumping by rivals in Iowa

• Feb 1, 2016

Iowa hairdresser relishes her small part of political history

Iowa hairstylist recalls memorable cuts with Barbara Bush, Sarah Palin, Mitt Romney and others

• Jan 31, 2016

Democrats to appear at extra debate before New Hampshire primary

The debate will be hosted by MSNBC and the New Hampshire Union Leader, the state's largest newspaper

• Jan 31, 2016

Ted Cruz under fire for controversial Iowa mailer

The mailing from Cruz's campaign warned voters that their caucus history would be public

• Jan 31, 2016

Super PAC takes last-minute aim at Trump in Iowa

Our Principles PAC is taking out newspaper ads and distributing voter guides to try to stop the Republican frontrunner

• Jan 31, 2016

Iowa caucus night from the perspective of the precinct captains

Julie Stauch, a veteran of several Iowa caucuses, invited CBS News to watch her walk new Clinton precinct captains through caucus night

• Jan 31, 2016

Bernie Sanders announces huge January fundraising haul

The Vermont senator is continuing to bring in mostly small-dollar donations; his campaign takes shot at Clinton's fundraising machine

• Jan 31, 2016

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