His tweets have the power to shape international relations, send stock prices up — or down — and galvanize the American public.

We're watching how Donald Trump is using this platform of unfettered communication now that he’s commander in chief. Here is everything Trump has tweeted since he was sworn in as 45th president of the United States. In many cases, we look at what he was reacting to and whether what he said was accurate. And, as much as possible, we'll relate what else was going on at the time. Check back for more as Trump continues to tweet.

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Trump's wide-ranging tweets: From Luther Strange to North Korea, athletes and more

Trump covered a wide range of topics Saturday on Twitter, from criticism of John McCain's vote against the latest Obamacare repeal effort, to the Warriors' decision not to come to the White House, to North Korea. 

Following his tweets on healthcare, Trump tweeted his endorsement of Luther Strange, the candidate running to replace Atty. Gen. Jeff Sessions in Alabama. 

At the Alabama rally to support Strange, Trump pivoted to North Korea, escalating his insults against North Korean leader Kim Jong Un. He continued his comments on Twitter later. 

Also on foreign policy, Trump tweeted that Iran test-fired a ballistic missile capable of reaching Israel, adding that they were working with North Korea. News reports later said there was no indication a missile was fired

The president took a moment Saturday to praise Melania Trump, who met with Britain's Prince Harry in what the Washington Post called her "busiest week yet." 

Interspersed throughout Trump's day were tweets about the Warriors' decision not to visit the White House and protests by NFL players against police brutality. 

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