If I understand Lindsey, he is proposing the following bargain: Libertarians will give up their politically hopeless goal of eliminating two wildly popular social programs that represent the core of liberalism’s domestic achievements. Liberals, in turn, will agree to simply eviscerate these programs, leaving perhaps some rump version targeted at the poorest of the poor. To be fair, Lindsey offers these ideas only as the basis for negotiation, but the prospects of bridging this gulf seem less than promising.
It’s worth noting that even the libertarians at the Cato Institute, in a study Lindsey touts and Chait pokes some holes in, could only come up with 13% of the population to label libertarian. And half of them are already voting for Democrats, despite the “anti-nafta, Wal-Mart-bashing economic populism” that Lindsey warns will be the party’s undoing. You wouldn’t know it from visiting most elite universities, but libertarianism is not a big hit. That’s why Bill Kristol urged congressional Republicans not to go wobbly against the Clinton healthcare plan: Not because an expansion (insufficient and needlessly complex though it was) of the government’s role in the healthcare system was contrary to the will of voters, but because if it passed it would cement the popularity of the party that passed it.