Former Vice President Al Gore didn't mince words on Monday while discussing how the U.S. is doing under the Trump administration.

Gore said during an appearance on NBC's Today show, "We've never had a president who's deliberately made decisions the effect of which is to tear down America's standing in the world."

He mentioned Trump's withdrawal from the Paris accord as an example, noting that climate change is currently one of the world's biggest challenges.

Gore added that the president has also "undermined our alliances such as NATO and hurt our standing in the world."

RELATED: Al Gore through the years



14 PHOTOS Al Gore through the years See Gallery Al Gore through the years Former US Vice President and Climate Reality Project Chairman, Al Gore gives a speech during Abu Dhabi Ascent event, a ministerial meeting to prepare for a September 23 climate change summit in New York on May 4, 2014 in Abu Dhabi. Ban Ki-moon urged 'bold' actions by countries around the world to reduce greenhouse emissions and fight global warming. AFP PHOTO / MARWAN NAAMANI (Photo credit should read MARWAN NAAMANI/AFP/Getty Images) ASPEN, CO - JUNE 30: Hillary Rodham Clinton, David Gergen and Al Gore speak during Afternoon of Conversation at the Aspen Institute on June 30, 2014 in Aspen, Colorado. (Photo by Riccardo S. Savi/Getty Images) ASPEN, CO - JUNE 30: Al Gore and Hillary Clinton speak during Afternoon of Conversation at the Aspen Institute on June 30, 2014 in Aspen, Colorado. (Photo by Riccardo S. Savi/Getty Images) Former U.S. Vice President Al Gore, left, speaks as professor David Gergen listens during the Aspen Ideas Festival in Aspen, Colorado, U.S., on Monday, June 30, 2014. The festival gathers some of the foremost thinkers in the world with civically-minded leaders in business, the arts, politics, philanthropy to share ideas and questions and drive thought to action. Photographer: Matthew Staver/Bloomberg via Getty Images Former U.S. Vice President Al Gore arrives to speak during the Aspen Ideas Festival in Aspen, Colorado, U.S., on Monday, June 30, 2014. The festival gathers some of the foremost thinkers in the world with civically-minded leaders in business, the arts, politics, philanthropy to share ideas and questions and drive thought to action. Photographer: Matthew Staver/Bloomberg via Getty Images ASPEN, CO - JUNE 30: Al Gore speaks at Afternoon of Conversation during the 2014 Aspen Ideas Festival at the Aspen Institute on June 30, 2014 in Aspen, Colorado. (Photo by Leigh Vogel/Getty Images) LOS ANGELES, CA - JUNE 07: Producer Lawrence Bender (L) and Former United States Vice President Al Gore inside the 13th Annual Chrysalis Butterfly Ball sponsored by Audi, Kayne Anderson and Stella Artois on June 7th, 2014 in Los Angeles, California. (Photo by Jason Merritt/Getty Images for Chrysalis) LOS ANGELES, CA - JUNE 07: (L-R) Honoree Jim Berk, former United States Vice President Al Gore and Honoree Jeff Skoll inside the 13th Annual Chrysalis Butterfly Ball sponsored by Audi, Kayne Anderson and Stella Artois in Los Angeles, California on June 7th, 2014. (Photo by Jason Merritt/Getty Images for Chrysalis) NEW YORK, NY - JUNE 05: Al Gore and Karenna Gore Schiff attend the 12th Annual James Parks Morton Interfaith awards dinner at Hilton Hotel Midtown on June 5, 2014 in New York City. (Photo by Walter McBride/Getty Images) NEW YORK, NY - JUNE 05: Rev. Chloe Breyer, Rev. James Parks Morton, Al Gore and Karenna Gore Schiff attend the 12th Annual James Parks Morton Interfaith awards dinner at Hilton Hotel Midtown on June 5, 2014 in New York City. (Photo by Walter McBride/Getty Images) JOHANNESBURG, SOUTH AFRICA MARCH 13: (SOUTH AFRICA OUT) Former US Vice President Al Gore addresses Climate Reality Leadership trainees at the Sandton Convention Centre on March 13, 2014 in Johannesburg, South Africa. Al Gore urged South Africa to cut back on coal-generated electricity and urged a new dialogue about the use of renewable sources and greener technology. (Photo by Denzil Maregele/Foto24/Gallo Images/Getty Images) JOHANNESBURG, SOUTH AFRICA MARCH 13: (SOUTH AFRICA OUT) Former US Vice President Al Gore addresses Climate Reality Leadership trainees at the Sandton Convention Centre on March 13, 2014 in Johannesburg, South Africa. Al Gore urged South Africa to cut back on coal-generated electricity and urged a new dialogue about the use of renewable sources and greener technology. (Photo by Denzil Maregele/Foto24/Gallo Images/Getty Images) Former US Vice President Al Gore listens during a session in Davos on January 24, 2014. Some 40 world leaders gather in the Swiss ski resort Davos to discuss and debate a wide range of issues including the causes of conflicts plaguing the Middle East, and how to reinvigorate the global economy. AFP PHOTO ERIC PIERMONT (Photo credit should read ERIC PIERMONT/AFP/Getty Images) Former US Vice President Al Gore speaks during the Center for American Progress(PAC) 10th Anniversary Conference in Washington, DC, October 24, 2013. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

A recent ABC News/Washington Post poll showed that Trump has "the lowest six-month approval rating of any president in polls dating back 70 years."

According to an ABC News report about the survey, "Just 36 percent of Americans polled...approve of Trump's job performance...The previous president closest to this level at or near six months was Gerald Ford, at 39 percent, in February 1975."

Poll participants cited Russia-related allegations and slow progress on nation's problems as key concerns.

However, among the 1,001 American adults who were surveyed for the poll July 10-13, the president's leadership on the world stage and his ability to negotiate with foreign powers were also called into question.

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