New polling data suggest Vermont Sen. Bernie Sanders could win the Nevada caucuses at the end of this week, but a victory may not improve his weak lead in a field of candidates who have, so far, failed to excite the Democratic electorate.

“I think Sanders is the favorite to win Nevada,” University of Nevada political science professor Eric Herzik told the Washington Examiner. “However, a ‘win’ will likely be far from commanding — maybe in the 30% range — as other candidates will be competitive.”