Democrat Matt Heinz and incumbent Republican Rep. Martha McSally.

Rep. Martha McSally continues to dominate fundraising in the Congressional District 2 race, campaign finance statements show.

The Republican incumbent raised $991,079 in the last three months for her re-election campaign.

Additionally, a super PAC dedicated exclusively to preserving and expanding the Republican majority in the U.S. House of Representatives has started running attack ads against her Democratic opponent, Matt Heinz. The Congressional Leadership Fund is expected to spend $700,000 this month in the race.

McSally still had nearly $2.1 million in the bank at the end of the September, filings with the Federal Election Commission show.

The figures are still relatively small, since one estimate suggests a total of $20 million was spent in the district race two years ago.

Meanwhile, Heinz has raised $375,999 between the beginning of July and the end of September. Heinz, a physician, had $203,386 left to spend in his campaign .

CONGRESSIONAL DISTRICT 1

Pinal Country Sheriff Paul Babeu raised $358,042 in the last three months, slightly more than is Democratic rival, Tom O’Halleran.

O’Halleran raised $325,779 during the same period, FEC records show.

O’Halleran outspent Babeu to travel around the state campaigning.

O’Halleran spent $498,187 on campaign-related activities and had $299,636 on hand.

By comparison, Babeu spent $390,410 to campaign around the state and had $89,847 on hand, FEC records show.

Contact reporter Joe Ferguson at jferguson@tucson.com or 573-4197. On Twitter: @JoeFerguson