Former Clinton Labor Secretary Robert Reich said Hillary Clinton's "disclosure" issues were a "key vulnerability" for her Sunday on This Week.
"I do think the issue of disclosure, of full disclosure, is a key vulnerability," he said. "She has got to, and her husband as well, just put everything out. More disclosure than any other candidate."
"Does [Bill] have to stop the paid speeches?" ABC host Jonathan Karl asked.
"I would say he has to stop the paid speeches," he said.
Clinton, the frontrunner for the Democratic presidential nomination, saw sinking poll numbers this week, with 57 percent in a CNN poll saying she is not honest or trustworthy and more people having an unfavorable opinion of her at any time since 2001.