Senator Cites Oklahoma and Kansas as Washington Considers Tax Plan

    A Republican U-S Senator from Oklahoma is pointing to the experiences of Oklahoma and Kansas as federal lawmakers consider a new tax plan.      Oklahoma Sen. James Lankford says GOP leaders are working on a potential revenue “backstop” in case the party’s tax cut legislation fails to produce hoped-for levels of growth and tax receipts.     Lankford said he and other Republicans are working on “just-in-case options” t…