Fact-checking Donald Trump's misleading tweet about U.S. nuclear arsenal | PolitiFact

One day after threatening North Korea with "fire and fury like the world has never seen" if it menaces the United States, President Donald Trump tweeted about the strength of U.S. nuclear weapons and improvements made on his watch.

Trump wrote at 4:56 a.m: "My first order as president was to renovate and modernize our nuclear arsenal. It is now far stronger and more powerful than ever before."...
http://www.politifact.com/truth-o-meter/statements/2017/aug/09/donald-trump/under-donald-trump-us-nuclear-arsenal-far-stronger/