A Republican lawmaker said Monday that he will propose a constitutional amendment to protect Louisiana from the repercussions of possible national health-care changes. “This is kind of a way to throw the gauntlet down and stand up for ourselves as a state,” said state Rep. Kirk Talbot, a River Ridge businessman. Talbot said he wants to protect state rights in the health-care arena via a constitutional change he will seek in 2010. The change would require a two-thirds vote of the Legislature, then approval by the state’s voters to take effect. Arizona and Florida are already considering similar proposals. “I...