(NEWSER) – Sure, lots of Republicans talk a good game about the need to torpedo ObamaCare, but Robert Pear at the New York Times explains that Marco Rubio is the only one to have actually made progress on the pledge—thanks to a relatively obscure amendment in last year's spending law.

It involves the wonky issue of "risk corridors," set up by the government to shield insurance companies from big ObamaCare losses. Rubio's amendment sharply limits how much the federal government can spend to defray such losses, and the shortfall from what was initially promised already has caused insurers around the country to shut down. It demonstrates "the effectiveness of quiet legislative sabotage," writes Pear. Rubio portrays the matter as yet government bailout, and he's working to continue the restrictions or perhaps eliminate the funding altogether in the new spending bill now under negotiation.

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