Some observers have approvingly claimed that the second Trump administration heralds a realist revival in American foreign policy. Writing in Foreign Affairs, Robert O'Brien, who served as national security adviser in the first Trump administration, eagerly promised “the return of realism with a Jacksonian flavor.”

President Donald Trump recalls being shot in Pennsylvania and says he was saved to "make America great again." He speaks during his inaugural address at the US Capitol. (Source: Bloomberg)

On his very first day in office, US President Donald Trump signed a series of significant executive orders. He withdrew the United States from the World Health Organization and the Paris Climate Agreement.