"When I started CNN, I made the decision to stay of [out of] endorsing candidates and let the viewers make up their own minds about politics, that it wasn’t going to come from me. The other networks were all telling everybody what to do.  But I wanted to be different and let people make up their own minds," Turner said.

Pressed by host Piers Morgan if he would be breaking his precedent with Romney, Turner clarified, "I’m not endorsing him."

If Turner does back Romney this election, that could mean a loss of a key fundraiser for the Obama campaign. Turner personally donated nearly $30,000 to the president's primary campaign in 2008, according to federal election records.