Former President Bill Clinton attacked President Barack Obama’s signature health care legislation Monday, calling it a “crazy system” that “doesn’t make any sense” during a Michigan campaign event for Hillary.

“It doesn’t many any sense. The insurance model doesn’t work here,” Clinton said about the government-run marketplaces Obamacare set up. Clinton said that Obamacare “works fine” for people with “modest” incomes or who are eligible for government subsidies, or Medicare. But he added that, “the people that are getting killed in this deal are small business people and individuals who make just a little too much to get any of these subsidies.”

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“You’ve got this crazy system where all of a sudden 25 million more people have health care and then the people are out there busting it, sometimes 60 hours a week, wind up with their premiums doubled and their coverage cut in half,” Clinton said. “It’s the craziest thing in the world.” (RELATED: Minnesota Hiking Obamacare Premiums At Least 50% To Avoid ‘Collapse’)

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This isn’t the first time Bill Clinton has knocked Obama on the campaign trail. In March, Clinton said, “If you believe we can rise together, if you believe we’ve finally come to the point where we can put the awful legacy of the last eight years behind us and the seven years before that, where we were practicing trickle-down economics, then you should vote for her.”