DENVER (AP) — Disagreement in the Colorado Republican Party over health care is coming to the fore as two GOP lawmakers seek to repeal a state health care exchange.

Colorado’s health care exchange was set up last year with the support of some top Republicans in the state Legislature. But other Republicans opposed the exchange because it is a requirement of the federal health care overhaul many of them believe will be thrown out.

Republican Sen. Tim Neville of Jefferson County says his repeal proposal introduced Friday would take effect only if part of the federal health care law is overturned by the U.S. Supreme Court.

The proposal is unlikely to clear the Democrat-controlled Senate. The bill’s House sponsor, Rep. Marsha Looper, is challenging last year’s exchange sponsor, House Republican Leader Amy Stephens.

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