OTTAWA, Dec 16 (Reuters) - Canadian Prime Minister Justin Trudeau's approval rating has dropped 10 percentage points in the last three months amid rising dissatisfaction with the economy and concern about pipeline approvals, a public opinion poll released on Friday showed.

Still, Trudeau remained far more popular than his two political opponents and more popular than any recent prime minister, with 55 percent of Canadians expressing confidence in his performance, the Angus Reid poll showed.

That was down 10 points from the 65 percent approval rating Trudeau enjoyed in September, according to the survey, which carried the headline "Is the honeymoon ending?"

"While this level of approval may well be the envy of prime ministers past and future, it also represents the lowest approval he has recorded at any point since his Liberal Party won a majority mandate in last October's election," Angus Reid said in the poll.

FLASHBACK: See Trudeau and Obama at the State Dinner



13 PHOTOS NTP: Canadian PM Justin Trudeau visits White House, State Dinner See Gallery NTP: Canadian PM Justin Trudeau visits White House, State Dinner WASHINGTON, DC - MARCH 10: President Barack Obama and Prime Minister Justin Trudeau of Canada exchange toasts during a State Dinner at the White House March 10, 2016 in Washington, D.C. Prime Minister Trudeau is on an official visit to Washington. (Photo by Olivier Douliery-Pool/Getty Images) WASHINGTON, DC - MARCH 10: President Barack Obama (C) gives a toast as Prime Minister Justin Trudeau (L) and First Lady Sophie Trudeau of Canada look on during a State Dinner at the White House March 10, 2016 in Washington, D.C. (Photo by Olivier Douliery-Pool/Getty Images) WASHINGTON, DC - MARCH 10: US President Barack Obama and Canadian Prime Minister Justin Trudeau hold a bilateral meeting in the Oval Office of the White House March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Olivier Douliery-Pool/Getty Images) WASHINGTON, DC - MARCH 10: US President Barack Obama and Canadian Prime Minister Justin Trudeau hold a bilateral meeting in the Oval Office of the White House March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Olivier Douliery-Pool/Getty Images) WASHINGTON, DC - MARCH 10: U.S. President Barack Obama and Canadian Prime Minister Justin Trudeau walk from the Oval Office to a joint press conference in the Rose Garden of the White House March 10, 2016 in Washington, DC. Trudeau and Obama met privately in the Oval Office prior to the press conference. (Photo by Chip Somodevilla/Getty Images) WASHINGTON, DC - MARCH 10: U.S. first lady Michelle Obama stands with Canadian first lady Sophie Gregoire Trudeau during an arrival ceremony for Canadian Prime Minister Justin Trudeau (not pictured) on the South Lawn of the White House, March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Mark Wilson/Getty Images) US President Barack Obama and Canada's Prime Minister Justin Trudeau take part in a welcome ceremony during a State Visit on the South Lawn of the White House on March 10, 2016 in Washington, DC. / AFP / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images) WASHINGTON, DC - MARCH 10: U.S. President Barack Obama and Canadian Prime Minister Justin Trudeau walk from the Oval Office to a joint press conference in the Rose Garden at the White House, March 10, 2016 in Washington, DC. Obama and Trudeau met privately before the press conference. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Mark Wilson/Getty Images) WASHINGTON, DC - MARCH 10: Canandian Prime Minister Justin Trudeau escorts his wife Sophie GrÃ©goire-Trudeau during an arrival ceremony with U.S. President Barack Obama at the White House, March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Chip Somodevilla/Getty Images) WASHINGTON, DC - MARCH 10: Canadian Prime Minister Justin Trudeau greets invited guests during an arrival ceremony with U.S. President Barack Obama on the South Lawn of the White House, March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Chip Somodevilla/Getty Images) WASHINGTON, DC - MARCH 10: U.S. President Barack Obama and Canadian Prime Minister Justin Trudeau watch as a fife and drum corps performs during a an arrival ceremony on the South Lawn of the White House, March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Mark Wilson/Getty Images) WASHINGTON, DC - MARCH 10: U.S. President Barack Obama speaks about the location of the Stanley Cup as he welcomes Canadian Prime Minister Justin Trudeau during an arrival ceremony on the South Lawn of the White House, March 10, 2016 in Washington, DC. This is Trudeau's first trip to Washington since becoming Prime Minister. (Photo by Mark Wilson/Getty Images) Canada's Prime Minister Justin Trudeau and US President Barack Obama greet visitors as they take part in a welcome ceremony during a State Visit on the South Lawn of the White House on March 10, 2016 in Washington, DC. / AFP / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

Trudeau, dogged by accusations that rich donors to the Liberal Party have gained privileged access, will be questioned by Canada's ethics commissioner to see whether he broke conflict of interest rules, an official said on Thursday.

The poll showed Trudeau remained far more popular than either of his main political opponents, interim leaders of the Conservative and New Democratic parties, who will be replaced in 2017. Interim Conservative leader Rona Ambrose won 35 percent approval, while NDP leader Tom Mulcair notched a 43 percent approval rating, the poll showed.

Trudeau's drop in popularity was matched by a drop in voter satisfaction on a broad range of issues, including the economy, foreign policy, healthcare and public security, according to the poll.

The prime minister has also had to thread the needle on energy and the environment, recently announcing the approval of two pipelines and the quashing of a third just months after announcing a plan to require provinces to put a price on carbon emissions by 2018.