The media is going to tear Gingrich a new one in the next few weeks. They already started to do so until Gingrich shot himself in the foot with the amnesty bit. Thus, they turned their attention back to Cain. But, the Media will return to attack Gingrich (And Perry) if they make a comeback.
And that is key. The question is not whether there will be ammunition, the question is how well our candidate runs his campaign? My belief is that to some degree Gingrich is inoculated against much of the personal baggage by virtue of time and by virtue of his marriage. Much of the ideological problems which we conservatives raise only tend to help him with Reagan Democrats and independents because he has wandered to the left. In other words, he paints himself as a reasonable man willing to work with the other side etc. etc.which appeals to the mushy middle.
There is also the matter of forensic skills which is a broader subject than mere debating ability. Gingrich has it all in this respect.
Finally, there is only one way to campaign against Obama's well-financed demagoguery and that is to dominate the scene by the force of one's personality. Seize the initiative, frame the issues, Spear Obama, present a vision for rescuing the country. In other words, dominate the board.
No one can do this as well as Gingrich and I believe these skills more than compensate for any vulnerability arising out of his history. That is a subjective opinion on my part but it has carried him far in this primary process.