GOP Economists Call Pawlenty’s Economic Plan ‘Impossible,’ ‘Totally Unrealistic’ | TPMDC asks former Congressional Budget Office (CBO) directors who worked under Republican presidents to evaluate 2012 GOP presidential hopeful Tim Pawlenty’s economic plan. “It’s impossible,” said Robert Reischauer, CBO director under President George H.W. Bush. “It’s totally unrealistic,” added Reagan CBO director Robert Penner. As we’ve noted, Pawlenty’s tax cut plan would cost three times as much as the Bush tax cuts.