Opponents of Proposition 45, a health insurance rate regulation initiative that was overwhelmingly defeated by California voters, spent big in the run-up to the November election.
Final campaign finance reports filed Monday with the secretary of state showed that opponents spent $55.7 million to defeat the measure, up from $42.1 million in the campaign's Oct. 23 report.
Opponents, mainly hospitals, insurance companies and medical groups, raised $43.1 million, about $1 million more than reported in October.
For the record
Feb. 3, 10:15 a.m.: An earlier version of this post reported that hospitals, insurance companies and medical groups had donated millions in support of Proposition 45. They oppose the proposal.
Supporters, led by Consumer Watchdog, a Santa Monica activist group, reported final spending of $2.4 million, about the same as the October total. Contributions to the campaign were about $2.5 million.
Proposition 45 lost with 58.9% of voters statewide giving a thumbs down and 41.1 voting yes.
Supporters, including state Insurance Commissioner Dave Jones, argued that state regulation of health insurance rates was need to contain healthcare costs.
Opponents in a heavy media campaign took a contrary stance, saying rate regulation would make it harder to get health insurance.