Before he became the Obama administration's least favorite overpaid expert, MIT economist Jonathan Gruber was its darling. He appeared in an Obama campaign ad saying, "I helped (Massachusetts) Gov. (Mitt) Romney develop his health care reform, or Romneycare, before going down to Washington to help President Obama develop his national version of that law." The false portrayal of Romneycare and Obamacare as practically identical fueled the Democratic delusion that Congress had drafted the Affordable Care Act to appeal to rascally Republicans. Now Gruber is in the doghouse because he was captured on video being brutally honest. In 2010, Gruber told...