Sounds to me like Newt Gingrich still has the president bug. He came so close at one point in the 2012 campaign that it must have whetted his appetite for doing it again.
Why do I think that he will once again throw his hat in the ring? A taped phone call this afternoon showed he is very interested in remaining in politics and getting the conservative vote. The script has someone state that after the IRS scandals, the IRS should be abolished. Then Newt came on to ask people to join his group. He is offering a movie he made about Ronald Reagan for those donors.
Anyone thinking about running in 2016 needs to go ahead, find issues and spearhead them. Gingrich knows this. He has been quick to hop on the IRS issue.