Poll: Nearly half of Sanders's millennial supporters would vote third-party

Nearly half of millennials supporting Democratic presidential candidate Bernie SandersBernie SandersSanders: Trump was right about 'trying to end endless wars' Democrats battle over best path for Puerto Rico Bernie Sanders says he disagrees with Tlaib's call for 'no more police' 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 ClintonHillary Diane Rodham ClintonChelsea Clinton: Pics of Trump getting vaccinated would help him 'claim credit' Why does Bernie Sanders want to quash Elon Musk's dreams? Republican legislators target private sector election grants 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 TrumpDonald TrumpBiden administration still seizing land near border despite plans to stop building wall: report Illinois House passes bill that would mandate Asian-American history lessons in schools Overnight Defense: Administration says 'low to moderate confidence' Russia behind Afghanistan troop bounties | 'Low to medium risk' of Russia invading Ukraine in next few weeks | Intelligence leaders face sharp questions during House worldwide threats he 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 WarrenElizabeth WarrenDemocrats reintroduce bill to block US from using nuclear weapons first CEO who gave employees K minimum wage says revenue tripled 6 years later Forgiving K in school loans would free 36 million student borrowers from debt: data MORE

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