Final answer:
Many leading Democrats embrace policies such as government involvement, social welfare, and reducing economic inequality.
Step-by-step explanation:
One policy embraced by many, if not all, leading Democrats in the country is the advocacy for government involvement in various sectors and the promotion of social welfare. This is particularly evident in policies such as student loan forgiveness, free public college, universal healthcare, and the elimination of for-profit prisons. Some Democrats also support government intervention in corporate-dominated industries. Additionally, Democrats often endorse measures to address economic inequality, such as providing a social safety net and taxing inheritance. These policies align with democratic liberalism, which advocates for a robust role for the state in regulating the nation's economic activity while remaining within a capitalist economic system.