(Bloomberg) — Ominous images of anxious adults and children began flashing on streaming services and social media more than a week before Senate Democrats forced a government shutdown over their demands to renew expiring Obamacare insurance subsidies. “Health care costs will skyrocket,” the advertisements warn, urging Americans to “Tell Congress” to act to continue the tax credits as the video shifts to a view of the Capitol building. Only insurance lobbyists and allied health care advocates have adopted a distinctly bipartisan approach, enlisting at least one Republican strategist and emphasizing GOP-friendly arguments to further their cause. “There’s a natural constituency there,” said Buck, a well-known Republican strategist who served former House Speakers Paul Ryan and John Boehner. “I think Republicans see the political risk of allowing this to happen, particularly when the fight for the midterms is so intense.”