Presumptive Democratic nominee Hillary Clinton's campaign has proposed an increase in federal funding for community health centers as part of the ongoing courtship of Vermont Sen. Bernie Sanders' endorsement in the presidential campaign.

Clinton wants to provide $40 billion to the health centers of the next 10 years and to classify that funding as mandatory spending that is insulated from the annual budget fights that take place in Congress.

"Clinton's campaign says the proposal is part of her plan to provide universal healthcare coverage in the United States," according to the Associated Press. "The presumptive Democratic presidential candidate also is reaffirming her support for a public-option insurance plan and for expanding Medicaid by letting people age 55 years and older opt in."

The proposal won praise from Clinton's persistent opponent. "Today's proposal by @HillaryClinton is an important step toward expanding health insurance and health care access to millions of Americans," Sanders tweeted. "Together these steps will get us closer to the day when everyone in America has access to quality, affordable health care."

It's just the latest example of Sanders' presidential candidacy driving Democratic party policy to the left.

Late Friday, Democrats amended their party platform to call for a $15 national minimum wage. And on Wednesday, Clinton unveiled a plan to provide free college to people whose family incomes are below $125,000 a year.

Sanders is expected to endorse Clinton next week, according to the New York Times. "We have got to do everything that we can to defeat Donald Trump and elect Hillary Clinton," he told Bloomberg on Thursday. "I don't honestly know how we would survive four years of a Donald Trump as president."