"Services like Uber, Airbnb and Lyft stimulate our economy and work towards lower prices. How is this bad?" he asked on Twitter.
The U.S. shouldn't take advice on the sharing economy from someone who has been driven around in a limo for 30 years, he added, in a jab at Clinton.
Republican candidate Jeb Bush, meanwhile, criticized Clinton's larger economic plan. Her plan does nothing to help U.S. workers trapped in part-time jobs, he said.
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