As the price of a public college education has risen at well above the rate of inflation for decades, college affordability has become a key concern in public policy discussions. At the same time, recent high school graduates from lower-income and middle-income families are nearly 20 percentage points less likely to enroll in college the following…

The open-door policy at community colleges is unique in American higher education. It allows all comers--a retired grandmother, an Army veteran, a laid-off machinist--to learn a skill or get a credential. That broad access--the bedrock of the community-college system--has prepared hundreds of millions of people for transfer to four-year colleges…