Members of the Bay Area's congressional delegation, which includes some of the wealthiest lawmakers in Congress, have built significant personal fortunes by capitalizing on the region's pricey real estate market and investing heavily in the stock market. Two of the Bay Area's best-known lawmakers, Democratic Sen. Dianne Feinstein and House Minority Leader Nancy Pelosi of San Francisco, are fixtures on the list of Congress' richest members. But the majority of the region's lawmakers are millionaires or multimillionaires -- including those who spent most of their careers in government rather than the more lucrative private sector, according to the latest financial...