SIGN-UP: Get breaking news sent to you
Leno introduced a bill Wednesday that would ban private health insurance and replace it with a new payroll tax to cover every Californian.
He says the so-called single payer system is used with great success in 20 other countries.
Opponents say Leno's plan would lead to rationing of healthcare.
The governor vetoed similar legislation from Leno last year.
Today's latest headlines | ABC7 News on your phone
Follow us on Twitter | Fan us on Facebook | Get our free widget