The survey showed that approval of American leadership has fallen 10 points or more in 65 of the 134 countries since Mr. Trump’s inauguration, while it increased by that much or more in just four countries: Belarus, Israel, Liberia and Macedonia. It fell by 40 percentage points in Canada (from 60 percent in 2016 to 20 percent in 2017) and 28 percentage points in Mexico (from 44 to 16 percent).
Among NATO countries, 18 of 28 had 10-point declines or more, including Italy (14 points), Germany (21 points), Britain (26 points), France (28 points), Belgium (44 points) and Portugal (51 points). Even in Norway, which Mr. Trump singled out last week for praise, saying he would rather immigrants come from there than Africa or Haiti, just 13 percent approved of Mr. Trump’s leadership, down 42 points from Mr. Obama.
On the other hand, Africa was a bright spot for Mr. Trump, with 51 percent approving his leadership, just two points lower than the year before. The survey was taken before recent reports of Mr. Trump’s disparaging remarks about some African nations.
The results are broadly consistent with a Pew Research Center survey taken last year, but Gallup highlighted the comparison with other major powers. With 41 percent approval, Germany has replaced the United States as the top-rated global power. China at 30 percent has reached nearly even footing, and Russia is barely trailing with 27 percent.
The survey conflicts with Mr. Trump’s oft-stated assertion that the world is respecting the United States more under his leadership. Instead, the Gallup reported concluded, Mr. Trump’s foreign policy and his words “have sowed doubt about the U.S. commitment to its partners abroad and called its reliability into question.”