I've heard Newt, on many occasions, sort of as a verbal tick, use the adjective 'fairly' in a facetious way so as to mean VERY. As in..."I think the left wing bias of most of the press is fairly obvious to even the most casual observer.
By saying "two" networks may have emails, he is putting pressure on whoever has the email to not get out-scooped. There may only be one network that has it, but now he's got them wondering. Being first will get all the attention, second... not so much.
Also, by saying he thinks it will come out in a couple of days, he is applying additional pressure. This will be huge for whoever gets it out there first. They are less likely to hang on to it until after the election if they think a competitor is about to spring the bombshell - and if they hang on to it and release it after the election, they will be criticized for sitting on it for so long.