Issa calls for Sebelius to provide information related to website problems . Federal official says budget constraints did n't allow for enough testing of HealthCare.gov . They cite insufficient testing , last - minute changes by government . A problem with the web portal clogged up the system when it opened on October 4th .
Issa calls for Sebelius to provide documents related to website problems . Federal official says time frame did n't allow for enough testing of HealthCare.gov . Contractors cite insufficient testing , last-minute changes by government . A problem with the entry portal clogged up the system when it opened on October 1 .