The Republican congressional delegation from Arkansas warned the Obama administration on Monday that ObamaCare has so far failed to deliver the number of health insurance options that state officials promised.

"Before the law's implementation, state insurance officials claimed that there would be as many as eight carriers offering coverage in the individual market," they wrote in their letter to Health and Human Services Secretary Kathleen SebeliusKathleen SebeliusKansas Senate race splits wide open without Pompeo Is a presidential appointment worth the risk? New Dem Kansas gov reinstates protections for LGBT state employees MORE. "However, a consumer logging on to the AR Health Connector website will find, at most, four plans offering coverage, while over 60 percent of the state will have no more than two provider options."

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"This is a disappointing, if unsurprising, failure of the reforms promised by ObamaCare, which will mean decreased competition among plans, leading to higher costs, higher premiums, and less consumer choice."

The letter was sent by Sen. John BoozmanJohn Nichols BoozmanGOP senators read Pence riot act before shutdown votes On The Money: Shutdown Day 26 | Pelosi calls on Trump to delay State of the Union | Cites 'security concerns' | DHS chief says they can handle security | Waters lays out agenda | Senate rejects effort to block Trump on Russia sanctions Senate rejects effort to block Trump on Russia sanctions MORE (R-Ark.) and all four Arkansas House members, all Republicans: Reps. Rick CrawfordRichard (Rick) CrawfordThe 23 Republicans who voted against the anti-hate resolution House passes anti-hate measure amid Dem tensions GOP announces members who will serve on House intel panel MORE, Tim GriffinJohn (Tim) Timothy GriffinFlynn discloses lobbying that may have helped Turkey Tea Party class reassesses record Huckabee's daughter to run '16 campaign MORE, Steve WomackStephen (Steve) Allen WomackGOP rep defends Trump's border emergency declaration Top Republican says Trump's budget sets priorities, includes 'tough decisions' Chances of passing Dem budget are '50-50,' says chairman MORE and Tom CottonThomas (Tom) Bryant CottonSenate rejects border declaration in major rebuke of Trump Hillicon Valley: Doctors press tech to crack down on anti-vax content | Facebook, Instagram suffer widespread outages | Spotify hits Apple with antitrust complaint | FCC rejects calls to delay 5G auction Senate votes to confirm Neomi Rao to appeals court MORE.

To better understand how the law is affecting their state, the members asked for all correspondence between Sebelius and Arkansas Department of Insurance on the impact federal rules would have on insurance options. They also asked for all correspondence given to stakeholders about the launch of the website on October 1, and the number "confirmed enrollments" as of October 25.

They asked for this information by November 1, and said if that deadline can't be met, "please immediately contact our offices."

According these members, the average family has been income fall by 9 percent over the last decade, but said ObamaCare's rules will make them pay between 100 to 600 percent more for health insurance.