Rick Santorum suspended his presidential campaign on February 3 after garnering just one percent of the vote in Iowa.
Coming in second behind Republican presidential nominee Mitt Romney in 2012, Rick Santorum decided to make another go for the White House. He attempted to shift his focus away from social issues that defined his first presidential run to economic issues. Yet, social issues like the Supreme Court's same sex marriage decision, continued to be prominent in the Republican race.
After finishing first in Iowa in 2012, Santorum bet his victory on the Hawkeye State again, focusing all his energy there. But the former Pennsylvania senator was overshadowed by a large field of candidates. Since dropping out, Santorum has endorsed Marco Rubio.
Santorum last held public office nearly a decade ago in 2006 when he lost his re-election.
Secretary of State Bill Gardner predicts that there will be a total of about 550,000 votes cast on Tuesday - more than the 529,000 cast in 2008.
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Sen. Marco Rubio says he's thrilled to have Rick Santorum's endorsement and plans to use him a lot throughout the campaign.
The former Pennsylvania senator is ending his second presidential bid after a disappointing outcome in the Iowa caucuses on Monday.
Voters had their say for the first time in the 2016 presidential campaign, and the results could mean some measure of chaos for both parties.
The big question is whether this ultimately made a difference in candidate support as the results start to come in.
Love it or hate it, you need to accept it. Iowa gets the first crack at picking the next leader of the free world.
So, how does a caucus really work? Here's what you need to know before Monday's contest in Iowa.
It's hard for any candidate to lose gracefully, but Santorum is going out in exceptionally bitter fashion.
If you're experiencing presidential fatigue, it's way worse for someone living in Iowa.
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Donald Trump welcomed fellow GOP presidential rivals Mike Huckabee and Rick Santorum on stage to address the crowd at his Iowa event for veterans.
With just days until the Iowa caucus, candidates are praying for victory - and they want you to know it.
"Ted Cruz is wonderful at reading children's fairytales on the Senate floor," a narrator says in the ad, which will begin airing in Iowa this week.
If you missed the debate, you can catch up with all our coverage below, minute-by-minute.
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Governor Christie was relegated to the earlier debate stage, but he was more concerned with the likely Democratic nominee, Hillary Clinton.
The presidential election is still a year away and the primary doesn't even officially begin until Iowans head to caucus sites three months from now.
Essay: The 2016 presidential campaign will take place in a tumultuous time in American politics and the stakes are already incredibly high one year out.
Growth in Democratic-leaning groups outpaces traditional GOP voters but will those changes show up in November, 2016?
Who's running, who's leading, who's surging and who's fading.
The Republican Party starts with some disadvantages in the 2016 presidential race and there are competing theories about how they can win the White House.
