See my Post #69.
I basically agree with Gingrich's assessment. But as I have written, Trump is an instinctive Conservative, who is just now getting really focused on the problems. Depending on how one rates the issues, he may already be the most Conservative Republican who ran this year. The way I rate the issues, personally, he is more Conservative than anyone but Cruz was before he got off on the tangent which undermined his credibility--a tangent inconsistent with the values he proclaimed up until a few months ago.
There is no issue more pressing than that of how best to preserve the sovereign independence of the rooted American population, and Trump is the only one who appears all in on that.