Some of his proposals were detailed by his policy team or presented by Trump himself, in "Agenda 47" videos on his campaign website. Others were offered seemingly off-the-cuff - a product of Trump's "think out loud" style and openness to adopting ideas others had suggested to him.

In his victory speech on 6 November, he made it clear he intended to keep the promises that sent him back to the White House: "I will govern by a simple motto: Promises made, promises kept."

It's become a slogan of sorts in his first month in office, which has been marked by a blizzard of activity and notable progress in achieving some of his goals.

In areas such as immigration and foreign policy, Trump has broad power to act unilaterally - and has done so. In other areas, he has run up against legal challenges and political obstacles. Many of the other promises he's made will ultimately require action from Congress, under narrow Republican control, to become permanent.

Here's a look at some of Trump's biggest "day one" promises and his efforts to turn them into reality.