The 59-year-old Minnesota senator announced on March 2 that she was exiting the 2020 race and endorsed Vice President Biden hours before "Super Tuesday," when 14 states and a third of the total delegates who will pick the Democratic nominee will be up for grabs.

"I’ve been so proud that people have been willing to pitch in and help each other,” Klobuchar told her staff, according to The New York Times. “And so that’s why this is a really hard thing to do today. But I really step back and think, ‘What is the best thing for us, and not just me, but our whole team?’ And I keep trying to think of what is best for our country right now. So I decided that I’m going to be endorsing Vice President Biden today.”

Klobuchar, who launched her campaign in February 2019 against a snowy backdrop in Minnesota, hoped to turn her statewide popularity there and her Midwestern bonafides into a promising presidential campaign.

“For too long, leaders in Washington have sat on the sidelines while others try to figure out what to do about our changing economy and its impact on our lives, what to do about the disruptive nature of new technologies, income inequality, the political and geographic divides, the changing climate, the tumult in our world,” she said at her announcement, continuing: “Let’s stop seeing those obstacles as obstacles on our path. Let’s see those obstacles as our path.”

But she failed to ever gain significant traction and did not win any of the first four primaries or caucuses — coming closest with a surprisingly strong third-place finish in New Hampshire.

Her exit, while narrowing the remaining field of candidates, creates only more uncertainty about how voters may break on Tuesday's voting. For example, her home state of Minnesota, where she was polling in first place, is now up in the air.