The Republican Attorneys General Association, which has been pouring money into the Virginia's attorney general's race, upped the ante Wednesday with an additional $900,000 contribution to GOP nominee John Adams.

The group has donated a total of $2.75 million to Adams, with less than a month to go until the Nov. 7 election. The Democratic Attorneys General Association has given incumbent Mark Herring (D) $1.7 million so far, although Herring has raised about $2.8 million more than his opponent overall.

The Republican group signaled earlier this year that it would break a long-standing practice of not spending money on races where one candidate is an incumbent. Its Democratic counterpart quickly followed suit. The Virginia contest is the only attorney general's race in the nation this fall.

Virginia general election guide