Ms. Warren and her team feel the same. She is not cratering or surging, neither the most likely to win nor at risk of immediately dropping out, a 40-degree day surrounded by candidates who are hot and cold. Her staff members and plenty of allies argue that as a result, she is being ignored by the news media and some voters during a pivotal moment in the primary, and she is at risk of becoming less relevant in the nominating process — something her campaign is now trying to reverse.

When her caucus-night speech in Iowa was cut off, her campaign aides complained privately to cable networks. When her speech after the New Hampshire primary was not carried live at all, they took their criticism public.

“Elizabeth hasn’t been getting the same kind of media coverage as candidates she outperformed,” read a recent fund-raising email to supporters. “We can’t count on the media to cover our campaign fairly, so we’re taking our case directly to voters.”

If the campaign is trying to rally supporters at a time when Ms. Warren’s candidacy hangs in the balance, it is also trying to move on from some recent political events: Her much-touted campaign organization did not show a dramatic payoff in the first two contests, and polling in Nevada, South Carolina and Super Tuesday states has shown little improvement among the black and Latino Democrats she once thought could spring her to the nomination.

Straining themselves to avoid criticizing the candidate or campaign, Ms. Warren’s most loyal admirers are trying to reframe the New Hampshire outcome in the most flattering light possible: More than two dozen of them, in interviews at events throughout Nevada, argued her fourth-place finish was an aberration, not a blow to the campaign’s core message that should force reflection or correction.