Joe Biden has adopted the anti-Wall Street rhetoric of some of his former rivals for the Democrat nomination, but that has not stopped him from collecting an enormous war chest of campaign cash from the financial sector. Biden on Tuesday said that America “wasn’t built by Wall Street bankers and CEOs, it was built by the great American middle class.” Securities industry employees, a close proxy for Wall Street, have donated $29,703,244 to Biden’s campaign or to political committees supporting his campaign for the presidency, according to the nonpartisan Center for Responsive Politics. The sector is the second-largest source of...