Reichert, 74, has struggled to gain widespread appeal among independent and moderate Democratic voters — or unified support from the state Republican party, which endorsed a rival in the primary.
And as ballots are sent out in the vote-by-mail state, his path to victory appears increasingly shaky.
He and Reichert have each worked to position themselves as the law-and-order candidate while the state experiences a rise in violent crime.
Ferguson has brought up the possibility on his website of pursuing an amendment to the state constitution to strengthen abortion protections.
Ballots in Washington state are mailed out at least 18 days before Election Day.

Washington state AG and ex-sheriff face off in governor's race