How did Donald Trump stun the world and take the White House? Tonight on 20/20

NEW YORK (KGO) -- How did Donald Trump stun the world and take the White House. ABC's 20/20 goes inside what made him president in their special airing tonight at 10/9 c.

ABC's Tom Llamas reveals what he's seen close up, like no one else - while following Trump's campaign for the past 500 days. Hear more from Omarosa Manigault and many others close to the Trump campaign.

Days after the historic election, 20/20 will go inside the making of Donald Trump as a man and a politician.

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