President Barack Obama yesterday acknowledged technical problems with the Affordable Care Act’s online marketplace. In remarks at the Rose Garden, he said, “There’s no sugarcoating it: the website is too slow; people have been getting stuck during the application process, and I think it is fair to say that no one is more frustrated by that than I am.” Obama underscored those benefits of the new law which do not depend a website, and he said a “tech surge” is underway to solve the problems. About 20 million Americans have visited the site in the past three weeks. But experts say substantial improvement is needed in the next few weeks to meet the administration’s enrollment targets. Diane and her guests talk about the challenges of fixing HealthCare.gov.