Interest groups on all sides of the healthcare reform debate have spent more than $57 million on television advertisements in six months, most of it in the last 45 days, said Evan Tracey, chief operating officer of the Campaign Media Analysis Group, which tracks television advertisements. Supporters of President Obama's plan to overhaul the system have outspent opponents, with $24 million worth of advertising, compared with $9 million from opponents. An additional $24 million has been broadly spent in support of overhauling the system without backing a specific plan.