Nearly half of millennials supporting Democratic presidential candidate Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE are thinking about backing a third-party candidate, according to data and local discussion on Yik Yak, a location-based social network.

The poll — which asked Sanders supporters whether the Vermont senator's endorsement of presumptive Democratic nominee Hillary Clinton Hillary Diane Rodham ClintonBiden leads Trump by 36 points nationally among Latinos: poll Democratic super PAC to hit Trump in battleground states over coronavirus deaths Battle lines drawn on precedent in Supreme Court fight MORE changed their opinion — found that 48 percent of respondents said they would vote for a third-party option.

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Another 39 percent said they would support Clinton and 13 percent said they may support presumptive GOP nominee Donald Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE.

The poll surveyed 2,000 self-identified Sanders supporters from July 12-13. The margin of error is 1.8 percent. Yik Yak has a 98 percent millennial user base.

Sanders endorsed Clinton earlier this week after a contentious primary campaign. The Vermont independent said he intends to do everything possible to make sure Clinton is the next president of the United States.

Another Yik Yak survey asked users who they would find most appealing on both Clinton and Trump's tickets.

The survey found that 55 percent of millennials hope that former Speaker Newt Gingrich (R-Ga.) is chosen as Trump's running mate and 27 percent are hoping that New Jersey Chris Christie is picked. Just 8 percent are rooting for Indiana Gov. Mike Pence.

For Clinton's running mate, 74 percent of millennials said they hoped the presumptive Democratic nominee would choose Elizabeth Warren Elizabeth WarrenGOP set to release controversial Biden report Biden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt MORE.

The results were based on a poll of 2,500 millennials on Yik Yak.