evidence: Democrat Alexandria Ocasio-Cortez, 29, won her U.S. House race in New York. But on her road to becoming a heroine of progressives and media darling, she had to dip into her savings, leaving her with less than $7,000 stashed away. Her 2017 income: less than $27,000. [...] But many find that troubling. If candidates by and large need to be wealthy to run, is that good for democracy?