Top GOP groups raise nearly $20M for Senate races

The two leading outside groups working to keep the Senate in Republican hands raised $19.9 million in September and are on track to collect more than $20 million this month.

The Senate Leadership Fund brought in $6.6 million last month, with its nonprofit arm One Nation raising $13.3 million. That's down from a combined $42 million in August.

Seven Senate races, including New Hampshire and Nevada, are considered too close to call less than three weeks before the election.

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