to go live and effectively explode on the launch pad. >> reporter: todd park, appearing today with other government technology experts at the hearing which more than once devolved into partisan sniping. >> i wasn't insulting your -- >> i take it as an insult. >> park, while taking his lobs for the website's poor performance revealed the number of users it can currently take on at once. >> the system has been comfortably handling at present about 20 to 25,000 current users. >> reporter: great, except that's only about half its intended capacity. a month and a half after the launch, after all the assurances that the white house's top people working on it right now, how can they ever meet the self-imposed deadline which president obama restated just a week ago? >> we are working overtime to get this fixed and the website is already better than it was at the beginning of october and by the end of this month, we anticipate that it is going to be working the way it is