BY DAVE PRICEDaily Post Editor Congressman Ro Khanna, who is eyeing a run for president, is the South Bay’s most outspoken critic of the rich. In fact, he co-sponsored the Make Billionaires Pay Their Fair Share Act with Sen. Bernie Sanders, that calls for a 5% annual wealth tax on billionaires. Khanna isn’t a billionaire; his net worth is an estimated $340 million, according to financial disclosure reports members of Congress are required to fi…