And just like that, it all came down to Super Tuesday for Sen. Amy Klobuchar.
On Saturday, Klobuchar came in about sixth place in the South Carolina primary, according to Associated Press results.
It was a great night for former Vice President Joe Biden, who won the contest by a staggering 30 percentage points over frontrunner Sen. Bernie Sanders, who came in second.
As Vox reports, what may have hurt Klobuchar in South Carolina is not only her relative lack of name recognition, but also questions about her record on race — a big deal in a state where African-Americans make up more than 60 percent of Democratic voters.
This controversy stemmed from a report suggesting that a black teen had been wrongfully convicted of murder — and imprisoned for life — during Klobuchar's tenure as Hennepin County attorney.
Not that Klobuchar's loss came as a surprise to her campaign. As CNN reported, the Democratic senator effectively abandoned South Carolina days before the primary vote, choosing instead to make campaign stops in North Carolina, Virginia, Tennessee and Maine.
Why those states? They're all Super Tuesday states, as is Klobuchar's home turf of Minnesota — where polls have her ahead of Sen. Sanders.
But as the Star Tribune noted last week, Klobuchar's poor performance in the primaries so far has her facing pressure to drop out of the presidential race, making Super Tuesday a likely make-or-break day for her campaign.
The South Carolina results did convince one of her opponents to withdraw, however; billionaire Tom Steyer has announced he's quitting the presidential race, saying, "honestly, I can't see a path where I can win the presidency":