**SNIP** The 77-year-old has touted himself as "Middle-Class Joe" for decades - but he and his wife, Jill, have a net worth of $9 million, according to a Forbes estimate from July 2019. The couple's fortune is mostly tied to public speaking engagements and book royalties, according to tax returns and financial disclosures released by the Biden campaign and published on the campaign's website. **SNIP** Since 1998, the first year Biden released his tax returns, the majority of the Bidens' income was attributed to his Senate salary and her community college professor's salary, according to Forbes. Biden's salary in 2009,...