President-elect Donald Trump has promised to bring jobs back from overseas, destroy ISIS terrorists and build a wall on the southern border with Mexico.
He has the advantage of a Republican-controlled Congress eager to put its imprint on foreign and domestic policy after eight years of President Barack Obama, and an engaged base of new GOP voters eager to shake up Washington.
But Democrats have vowed to block Trump's agenda, including efforts to repeal and replace the Affordable Care Act.
And a rapidly changing geopolitical landscape threatens to upend Trump's foreign policy goals.
Following are key issues Trump is likely to face:
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