He does not need to.
He can stick to what his possible supporters care about most.
IMO, all he will end up saying about the marriage ruling is that the SC overstepped it’s boundaries and that it was a state issue and not a federal issue. That is certainly true.
He will focus on jobs, immigration, the debt, our international standing and the poor leadership we have had for some time now in this country.
As he bravely takes strong positions on the most important topics he will gather group after group to his candidacy. The GOPe candidates are too squeamish to speak plainly and are held in contempt by the groups trump wishes to impress.
Do you really think he doesnt know what and when he will tell some truths about that affair?
Do you think it will take all that much truth to piss off less than 2% of the population?
He IS married to only one female, that we know of, so I am taking that on face value.