National enrollment at community colleges has declined by about 10 percent during the pandemic, far outstripping the drop in overall college enrollment. Some community colleges in poorer communities have lost as much as 20 percent of their student body. Jill Biden, the first lady, is a community college professor and has long been a proponent of increased funding for community colleges and has been promoting the idea in visits around the country. While generally consistent with Mr. Biden’s campaign blueprint, the proposal omits any reference to erasing college debt, a move promoted by a num...