Sen. Marco Rubio (R-Fla.) is opening a new front in his attacks on ObamaCare as he campaigns for president.

After trying to bring publicity to his efforts to limit the Affordable Care Act’s “risk corridors” program, Rubio and Sen. Orrin Hatch (R-Utah), the chairman of the Finance Committee and a campaign backer, wrote a letter on Tuesday arguing that the Obama administration is breaking the law with another “bailout” of insurance companies.

Their letter concerns ObamaCare’s “reinsurance” program, designed to protect insurers against high costs for sicker enrollees in the early years of the law. Under the program, the government collects money from insurers and then redistributes it to those with high-cost enrollees.

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