By Matt Hadro | June 26, 2012 | 4:48 PM EDT

CNN's chief medical correspondent, Dr. Sanjay Gupta, was once a serious candidate to be President Obama's surgeon general – and thus a megaphone for ObamaCare – before he turned down the offer. Now he is going on CNN and sounding the alarm that health insurance premiums will probably rise if the ObamaCare mandate is overturned by the Supreme Court.

However, CNN issued no disclosure on Sunday, Monday or Tuesday about Gupta's past relationship with the President. His report on "Obamacare: 60 years in the making" aired multiple times from Sunday through Monday, and he appeared on CNN on Tuesday to explain how health care costs could rise if the law's individual mandate is overturned.