It's Thursday afternoon and Bernie Sanders is on a TV set about to go live when he realizes there's a problem.
"Does this make me look fat?" he asks, looking down at how his stomach folds into a red upholstered arm chair.
He's seated at a coffee table with a journalist, New Yorker writer Jane Mayer, in front of a bookshelf filled with generic TV props — books, empty vases, fake house plants.
He decides the chair has to go and two straight-backed leather replacements are quickly brought out.
Sanders can choose the chairs because this is his show. He's the host, not the guest, and everyone here works for him, or the newly revamped studio run by the Senate Democratic Media Center.
The voice of an aide comes over the P.A. system. "Alright Senator, we're ready in 5...4...3...2..."
"Well, welcome everybody," Sanders says, kicking off the fourth episode of "The Bernie Sanders Show."
Pretty much every politician today is trying to use social media to get their message out to supporters and around the filter of the mainstream press.
President Donald Trump's Twitter account may be the most powerful media outlet in the country. And as one of his first acts after taking over the Democratic National Committee, Chairman Tom Perez started a series of conversations with party stars called "Democrats Live."
But no one is doing it with quite the ambition of Sanders, whose new talk show on Facebook Live is just latest project of a mini-media production house being run out of his Senate office.
Sanders, thanks to his presidential campaign, is a content marketer's dream. In mediaspeak, Sanders is a cross-platform brand with a loyal and unusually engaged audience in the key demographic of 18-34 year olds.
"Bernie is viral gold," said Armand Aviram, whom Sanders recently hired to produce short-form videos like the ones he made for NowThis, a buzzy millennial-focused media outlet.
The Vermont senator has 4.7 million followers on Twitter and 7 million likes on Facebook — more than double that of his closest competition in Congress, including national stars like Sens. Elizabeth Warren and Cory Booker.
Guests on "The Bernie Sanders Show" have so far included Rev. William Barber, the leader of the "Moral Monday" movement, anti-fracking filmmaker Josh Fox and former "Science Guy" Bill Nye, whose conversation with Sanders about climate change racked up 4.6 million views and 25,000 shares. (Click here to watch a video clip.)
The Vermont lawmaker spends no money on advertising or promoted content.
For Sanders, it's all about controlling his message, getting around the "corporate media."
"It gives me an opportunity to speak directly to many millions of people about the work that we're doing about the issues that we consider to be important," Sanders told NBC News.
Lately, those issues have been both what's driving mainstream coverage, like the doomed GOP plan to repeal Obamacare, and more under-the-radar topics, like Trump's pick to lead the Securities and Exchange Commission or plans to reform prescription drug pricing.