"This may seem like a pie in the sky dream to some but I assure you that I am in this to win it because I will not be able to make a difference if I come in second," he wrote.
Staunton spent decades as a reporter and anchor for stations in Charleston and Beckley, according to the Charleston Daily Mail, which first reported news of his candidacy.
He cited "communication skills" and "backbone" in making his case for the seat on his Facebook post.
"I am by no means a politician. I am a statesman who will do great things for our state. This is the most intimidating job interview process I have ever pursued, but my resume, extraordinary communication skills, and backbone are just what the Mountain State needs in Washington to get the things we need to make life better," he said.
He'll face Rep. Shelley Moore Capito (R), who announced early on that she'd be running for the Republican nomination for the seat.
No Democrat has yet made a bid official, but West Virginia Secretary of State Natalie Tennant and state Sen. Erik Wells, as well as local attorney Nick Preservati, are all considering a run.