US President Donald Trump begins his first full day in office Tuesday, riding a wave of executive orders signed just hours after his inauguration on everything from immigration to the environment and culture wars.

After the pomp of his inauguration ceremony and stunning array of executive orders, the president's Tuesday begins with a more solemn event: a prayer service at the National Cathedral.

Trump, 78, last visited the neo-Gothic church in the US capital in early January for the funeral of late president Jimmy Carter.

It was unclear if or when more executive orders would come from Trump, as the country and world digest the blizzard of actions he took Monday -- including initiating withdrawals from the Paris climate accord and World Health Organization.

Signed in front of roaring supporters at an arena and then later in the Oval Office, the long list of policy changes offered a vivid symbol of........

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