Bernie Sanders has been leading in the polls leading up to the caucuses and is widely expected to maintain the momentum he has built with two strong finishes in Iowa and New Hampshire. A win in Nevada would further solidfy his standing as the leading candidate for the nomination, and bring him one step closer to being called the "presumptive nominee".
Pete Buttigieg, the other candidate considered a frontrunner, will have his campaign tested for the first time in a non-white majority state, with the viability of his run on the line after months of concern that he may have relatively meek support from non-white voters.
Meanwhile, Elizabeth Warren is hoping to capitalise on her domination during the Las Vegas debate on Wednesday, whch sparked a massive fundraising haul for her campaign even in the wake of relatively disappointing showings in Iowa and New Hampshire. Still, with early voting figures indicating tens of thousands had already made up their mind before her dazzling performance, her path forward remains relatively slim. As proof of that, Ms Warren has refused to disavow a super PAC spending on her behalf after spending the better part of a year warning about the corrupting power of money in politics.
Still, Joe Biden may be feeling the pressure more than the others – having placed fourth in Iowa and fifth in New Hampshire, despite a commanding lead in national polls for months, the former vice-president needs some good news.
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