Let's say at the outset that no one has proven Donald Trump was the source behind last week's National Enquirer gossip piece about extramarital affairs by GOP presidential rival Ted Cruz. If Cruz deserves the benefit of the doubt for his role (or lack thereof) in a super PAC ad campaign that featured a racy photo of Melania Trump -- despite Trump alleging that Cruz was behind it -- then Trump should get the same when it comes to a tabloid rumor -- despite Cruz alleging that Trump was behind it.