Former Health and Human Services secretary Kathleen Sebelius acknowledged in an interview aired Sunday that the Obama administration was “flat-out wrong” that the health insurance exchanges created by the new health care law would be ready on Oct. 1 of last year.

Sebelius, who stepped down last week after serving as President Obama‘s health secretary following the botched roll-out of the main coverage provision of Obamacare, also said that “there’s no question — and I’ve said this many times — that the launch of the [Obamacare exchange] website was terribly flawed and terribly difficult.” As late as a week before enrollment through the healthcare.gov website was supposed to begin on Oct. 1 of last year, White House officials were saying that the site would be ready to go.