Congressional Leadership Fund reported raising $3.1 million Oct. 1-17, to close the period with $8.7 million in cash on hand.

The pro-Republican super PAC, the sister organization of American Action Network, a 501(c)(4) organization, told Roll Call earlier today that its October fundraising will help support a planned $18 million ad blitz by the two groups through the month’s end in support of GOP House candidates. Congressional Leadership Fund reported $306,000 in expenditures and no debt in the pre-general filing period.

According to Congressional Leadership Fund’s Federal Election Commission report, its donors this month include August Busch III, who contributed $50,000, and Chevron, which gave $2.5 million.

Congressional Leadership Fund is dedicated to investing in House races on behalf of Republican candidates. The group is referred to by some as Speaker John Boehner’s (Ohio) super PAC. Its board is chaired by former Sen. Norm Coleman (R-Minn.), who also serves as chairman of American Action Network, former National Republican Congressional Committee Chairman Tom Reynolds (N.Y.), former Rep. Vin Weber (R-Minn.) and Fred Malek.