He raised $1 million for them. Not sure how much he himself gave, but he typically has given $200,000 per cycle, according to records, and PACs do not normally disclose all contributors. However you slice it, Bachmann is way off base in calling Cain "pro-choice", especially on video following Mittens, whose mother gave a ton to Planned Parenthood, and who was pro-choice most of his career. Cain has never been anything but. She should withdraw the ad.
There’s no indications that Cain himself gave money to America’s Pac, which was the source of the “$1,000,000” claim. He may have given money to other organizations, but that is irrelevant to this particular claim, which is patently false.
Regardless, Bachmann is off-base by calling Cain “pro-choice”, at least by my definition.