Democratic presidential candidate Hillary Clinton talked up her proposal to provide health insurance for everyone in a live webcast Tuesday night, calling it a "uniquely American solution" to a lack of affordable health care. She also stressed the challenges ahead in turning her plan into law.

The Democratic frontrunner answered a dozen questions from participants around the country who were asked to sign up online. In a nod to the new media for the new millennium, one question was submitted by text message.

The webcast was the latest installment of a major rollout for the plan. Clinton's campaign also debuted a television ad in the early voting states of Iowa and New Hampshire , touting her record on health care. While the webcast was billed as interactive, it wasn’t exactly a conversation. Clinton's campaign blogger, Crystal Patterson, moderated the forum, reading the questions chosen.

Clinton said thousands of people had logged on to hear her talk about the $110 billion a year "American Health Choices Plan" she unveiled Monday in Des Moines, Iowa. The proposal would require that everyone have health insurance, give them a choice of plans and provide tax credits to help subsidize coverage. All of the initiatives would be paid for in part by repealing tax cuts for the wealthy.