Updated at 5 pm EDT
A super-political action committee backing President Barack Obama slightly outraised a super-PAC supporting Republican challenger Mitt Romney last month.
Priorities USA Action, run by former Obama aides, will report $15.2 million in September contributions when it files tomorrow with the U.S. Federal Election Commission, according to an aide with knowledge of the report. That would mark its best month yet.
Restore Our Future, a pro-Romney group, reported to the FEC today that it collected $14.8 million in September, making it the group’s second most lucrative month. Restore Our Future raised about $21 million in June.
Both super-PACs have been airing thousands of television advertisements in support of their preferred candidates. The presidential candidates and many of the major outside groups involved in the election are due to report their September campaign finance activity to the FEC tomorrow.
Familiar names appear in Restore Our Future’s September filing.
Houston home builder Bob Perry wrote a $2 million check, bringing his total investment in the group to $10 million since the beginning of 2011. Perry has given millions more to other Republican super-PACs.
Harold Simmons, chairman of Dallas-based Contran Corp., donated $500,000 for a total of $1.3 million so far. Simmons also has given $11 million since last year to American Crossroads, a Republican super-PAC linked to political strategist Karl Rove.
Oxbow Carbon LLC, a Florida-based energy company founded by billionaire William Koch, gave $1 million to match its 2011 contributions to the group.
Restore Our Future also got a $1 million boost from Robert McNair, the owner of the Houston Texans professional football team. Another $1 million came from Stanley Herzog, the chairman and chief executive officer of Herzog Contracting Corp. in St. Joseph, Missouri.
Restore has raised $111.5 million since the beginning of 2011, more than double the $50.9 million Priorities has collected.