Bill Gates once agin tops Forbes’ list of the nation’s richest people. The wealthiest New Yorker is Tea Party puppeteer David Koch (above), who is worth $25 billion and with his brother is tied for the fourth wealthiest person in America. Mayor Michael Bloomberg is second in New York and twelfth nationally with a worth of $19.5 billion. Almost all of the billionaires on this year’s list are worth more than last year. Times are tough.