An interesting article from the Brookings Institute that includes this:
Is the GOP going to be so split that they will cede elections to Dems?
Read the article @ The Libertarian Challenge within the GOP | Brookings Institution
First, according to the PRRI poll, libertarians represent only 12% of the Republican Party. This number is consistent with the findings of other studies by the Pew Research Center and the American National Election Study. This libertarian constituency is dwarfed by other key Republican groups, including white evangelicals (37%) and those who identify with the Tea Party (20%).
Is the GOP going to be so split that they will cede elections to Dems?
Read the article @ The Libertarian Challenge within the GOP | Brookings Institution