Thousands of protesters have gathered outside a banking conference in Chicago today - the final day of a three-day rally for financial reform - to call for an end to lobbying against proposed financial regulation by banks that pocketed taxpayer bailouts last year."We thought it was time to send them a message that they're bankrupting America," Jerry Morrison, executive director of the Illinois state council of the SEIU, told me in a phone interview this morning, with a clamoring protest audible in the background. "We gave them money, and it's time they gave it back."Morrison said he expected 8,000 to 10,000 protesters to rally in Chicago today, where the American Bankers Association is holding a conference. Morrison said the point of the protest is to kick off "a nationwide campaign" in dozens of cities pushing big banks like Wells Fargo, Bank of America and J.P. Morgan Chase "to stop using our money to lobby against reform."