https://democrats.org/wp-content/uploads/2025/07/2024-Democr...
This is the current DNC platform. There are zero mentions of a universal / single payer / socialized healthcare system.
There are four mentions of "healthcare" it refers to maintaining the ACA (which is a bad law), making a more integrated health care system in the US territories (Guam, Virgin Islands, Puerto Rico, etc.), climate law which will improve health care nebulously, and a vague statement about the supreme court hurting healthcare decisions (which is just a statement about them supporting the murder of babies).