Single payer, or Medicare for All, has been a priority for the Democratic Party's left wing, since it was largely overlooked during the 2020 presidential primaries due to a lack of support for the idea. Now, a new generation of Democratic House, Senate and even gubernatorial candidates are reviving the idea, which is seen as a resurgence due to rising health care costs. Joseph Geevarghese, executive director of Our Revolution, sees this resurgence as a sign of growing frustration over rising costs. The 10-year cost for a federal single-payer plan would be nearly double what it is projected to be in 2020, according to a projection by John Holahan, a fellow at the Urban Institute. Proposals to replace the existing health care system have also surfaced in Democratic primaries this year, including in Illinois, California, New York City, and Maine. However, there are still political liabilities associated with single payer like having the government exercise more control over health care and needing a significant tax increase to pay for it.