As a nominee Trump is heir to a tradition that boasts great Presidents including Lincoln, Theodore Roosevelt, Eisenhower, and Reagan. Trump, therefore, should have moderate positions or principles that fit in that tradition.
In his first inaugural, Lincoln reminded Americans to be governed by "the better angels of our nature," arguably the greatest urging toward moderation in any recorded political speech. Trump, on the other hand, gives a segment of America license to vent their anger although he doesn't seem to add the Christian injunction "in your anger sin not." In fact, Trump's entire campaign seems predicated on the rather immoderate principle to submit to one's most angry "lesser imps and demons" if not our personal version of the angry "great Satan hisself" (My apologies to the Coen brothers for taking lines from O Brother Where Art Thou? out of context.)
Theodore Roosevelt and Trump share a New York brashness. Trump has certainly predicated his campaign on the premise that "we stand at Armageddon." Further, he promises to use a "big stick" to force Mexico to pay for a wall across the United States's southern border. Unlike Roosevelt, Trump has never promised to "battle for the Lord" at Armageddon. He seems more likely to battle only for Trump. More importantly, no one has recorded an incidence of Trump speaking his "big stick" threats softly.
Dwight Eisenhower organized the logistics behind the United States's World War II victory. As President he was the guiding force behind the nation's interstate highway system. Trump can claim Trump University, Trump Steaks, and several bankruptcies.
Finally, Ronald Reagan claimed that the 11th commandment is "Thou shalt not speak ill of any fellow Republican." Trump has yet to find a Republican of whom he will not speak ill.
In short, Trump's rhetoric is far from moderate. Further, the only policy he has consistently enunciated involves expanding the federal government's power to allow for the deportation of 11 million undocumented residents, hardly an action borne from a moderate principle.