The House Financial Services Subcommittee on Oversight and Investigations released a summary of a report — expected to be released in full today — on the collapse of MF Global Holdings. In it, Republicans say CEO Jon Corzine’s decisions led to the firm’s demise. “Choices made by Jon Corzine during his tenure as chairman and CEO sealed MF Global’s fate,” said panel Chairman Randy Neugebauer, R-Texas. Bloomberg Businessweek (11/15), Financial Times (11/14), Wall Street Journal, The (11/14), Hill, The/On the Money blog (11/14)…