The former Goldman Sachs executive who helped one of the biggest banks profit off the nation’s housing collapse in 2008 is pouring hundreds of thousands of dollars into Democrat presidential candidate Joe Biden and Sen. Kamala Harris’s (D-CA) campaign. Donald Mullen Jr., as first noted by the Washington Free Beacon, gave $200,000 to the Biden Victory Fund in August. Mullen was a key architect of the “Big Short” scheme that allowed Goldman Sachs to profit from the housing collapse. New York Magazine detailed the scheme: