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White House press secretary Sarah Sanders briefed reporters Tuesday on President Donald Trump's first day working back in Washington after a holiday break in Florida.

Trump spent Tuesday morning tweeting about topics ranging from unrest in Iran to North Korea's nuclear weapons development and shielding young immigrants from deportation. Sanders addressed those topics as well as the retirement of GOP Sen. Orrin Hatch of Utah.

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Trump accuses DoJ of being part of 'deep state'

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Trump: Sanctions are having a 'big impact' on North Korea

Sen. Orrin Hatch will retire at the end of his term