Alabama Gov. Robert Bentley is maintaining a large fundraising lead over Democratic challenger Parker Griffith.
The Republican incumbent has raised more than $5 million in contributions in his quest to win a second term.
Campaign fundraising reports filed Wednesday show that Bentley added more than $400,000 to his campaign war chest in August.
Griffith raised $12,920 in August. Griffith has received $35,557 in cash contributions since announcing his challenge to Bentley. Griffith has loaned his campaign $367,000. The loans account for the bulk of his campaign funds.
Griffith, a radiation oncologist, is a former congressman and former state senator. Bentley, a dermatologist, is a former member of the Alabama House of Representatives.