Former Fox News host Tucker Carlson’s new media company has begun building its base of paying subscribers as it moves toward launch, its chief executive told Reuters. “We’ve opened our site for membership pre-sales,” said Neil Patel, co-founder and chief executive of the new venture. “Once we are comfortable that all of the systems are running well, launch and brand release will follow.” Patel said those paying subscribers will have access to members-only content and behind-the-scenes footage. He declined to comment on the pricing.