Elizabeth Warren is expected to follow Amy Klobuchar and Pete Buttigieg out of the race for the White House unless she can pull off a shock result in one of the 13 states holding a primary on Tuesday, 3 March.
Warren was one of the first to throw her hat into the ring for the Democratic Party’s nomination back in February 2019 but her initial momentum has faded in recent months.
She trailed in fifth place - with only seven percent of the vote - in the South Carolina primary on Saturday, 29 February, and the following day Pete Buttigieg, who got more votes than her, pulled out of the race.
But Warren - who was dubbed Pocahontas by President Trump after she claimed to have Native American ancestry - has stubbornly stayed in the contest and is clearly pinning her hopes on Super Tuesday.
Registered Democrats will vote in Alabama, Arkansas, California, Colorado, Maine, Massachusetts, Minnesota, North Carolina, Oklahoma, Tennessee, Texas, Utah, Virginia, and Vermont for the candidate they want to win the nomination.
Warren has been targeting Latino voters in California - where they make up 40 percent of the population - and could stay in the contest if she pulls off a miracle and wins the state from the frontrunner, Bernie Sanders.
As one of only two females left in the contest - Amy Klobuchar pulled out on Monday but Tulsi Gabbard is refusing to quit - Warren is also hoping to get votes from women, many of whom are still struggling to get over their disappointment at Hillary Clinton losing to Trump in 2016.
Many Democrats believe Clinton lost because she was seen as being a “Washington insider” and Warren has been quick to use that same stick to beat Joe Biden, the former Vice President, who first entered the Senate in 1973.
Klobuchar and Buttigieg endorsed Biden, a fellow moderate, immediately after bowing out and Warren, who has yet to win a primary or caucus, is floundering.
Warren is 70 and many will see 2020 as her last chance to get to the White House.
But Biden is 77, Sanders is 78 and so too is Mike Bloomberg - the billionaire former Mayor of New York who has focused his advertising spend on the Super Tuesday states - so there could be a chance for her to come again in 2024.
If she does pull out on Wednesday, Warren’s age is unlikely to make her a prime candidate for the vice president spot on the ticket.
If Sanders wins the nomination he could pick Tulsi Gabbard, 38, as his running mate, while Biden could pick 59-year-old Klobuchar.
The Democrat nominee will take on Donald Trump in November's presidential election.