Support is dropping for Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE's (I-Vt.) "Medicare for All" health care plan, according to a poll released Tuesday.

The Kaiser Family Foundation tracking poll found that 51 percent of those surveyed in October favored Medicare for All, a proposal in which all Americans would get their insurance from a single government plan, compared to the 53 percent who said they supported it last month.

Conversely, 47 percent of those surveyed said they opposed Medicare for All, an increase of 2 percentage points from September.

Support for Medicare for All has dropped 5 percentage points since April in the Kaiser Family Foundation tracking poll, and opposition has grown by 8 points.

Medicare for All has been a source of contention among Democrats running for president and it is likely to come up again during Tuesday's debate in Ohio.

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While Sanders and Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) support the plan, former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE and other moderates oppose it, arguing it would eliminate choice for Americans who prefer private health insurance.

Biden has opted for a more moderate proposal that would create a public option to compete with private insurance companies.

The Kaiser Family Foundation tracking poll found support for a public option is growing: 73 percent said they supported the proposal in October, compared to the 69 percent who said the same in September.

Independent and Republican respondents were more likely to support a public option than Medicare for All.

While only 28 percent of Republicans polled said they support Medicare for All, 58 percent said they support a public option, indicating Biden's plan might fare better in a general election.

Meanwhile, 50 percent of independents polled said they support Medicare for All, but 73 percent said they support a public option.

The tracking poll has a margin of sampling error of 3 percentage points and was conducted Oct. 3-8 among a nationally representative sample of 1,205 adults.