This is the closest to midnight that the clock has been since 1953, when it was moved to two minutes to midnight after United States and the Soviet Union tested their first thermonuclear weapons within six months of one another.
Source: Thanks to Trump, the Doomsday Clock Advances Toward Midnight – The New York Times
Interesting observation, so many parallels to a bye gone era returning. I believe Trump will have much better relations with the Russians this go round. Unfortunately history has a way of rhyming, not repeating. Back then there were only two nuclear powered countries, now there are plenty.