PHILADELPHIA, PA - JANUARY 26: British Prime Minister Theresa May speaks at the Congress of Tomorrow Republican Member Retreat at Loews Philadelphia Hotel on January 26, 2017 in Philadelphia, Pennsylvania. British Prime Minister Theresa May is on a two-day visit to the United States and will be the first world leader to meet with President Donald Trump. (Photo by Christopher Furlong/Getty Images)
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May: International institutions need reforming
British Prime Minister Theresa May says the United States and United Kingdom must work to reform international institutions, like the UN and NATO, so they can better serve their members.
01:21 - Source: CNN
Donald Trump and foreign policy 16 videos
PHILADELPHIA, PA - JANUARY 26: British Prime Minister Theresa May speaks at the Congress of Tomorrow Republican Member Retreat at Loews Philadelphia Hotel on January 26, 2017 in Philadelphia, Pennsylvania. British Prime Minister Theresa May is on a two-day visit to the United States and will be the first world leader to meet with President Donald Trump. (Photo by Christopher Furlong/Getty Images)
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May: International institutions need reforming
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President Donald Trump addresses the 73rd session of the United Nations General Assembly, at U.N. headquarters, Tuesday, Sept. 25, 2018. (AP Photo/Richard Drew)
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Trump claim to world leaders met with laughter
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Trump warns about doing business with Iran
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President Donald Trump talks on the phone aboard Air Force One during a flight to Philadelphia, Pennsylvania, to address a joint gathering of House and Senate Republicans, Thursday, January 26, 2017. This was the Presidentâs first Trip aboard Air Force One. (Official White House Photo by Shealah Craighead)
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WH stops summarizing calls with world leaders
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Clarke: Trump diminishes US role and influence
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US President Donald Trump and Russia's President Vladimir Putin attend a joint press conference after a meeting at the Presidential Palace in Helsinki, on July 16, 2018. (Photo by Brendan SMIALOWSKI / AFP) (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
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Trump: We are all to blame for Russia relations
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SAN FRANCISCO, CA - FEBRUARY 08: Canada Prime Minister Justin Trudeau looks on before speaking to members of the media during a visit to AppDirect on February 8, 2018 in San Francisco, California. Trudeau is visiting several cities in the U.S. (Photo by Justin Sullivan/Getty Images)
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WaPo: Trump admits he gave Trudeau false info
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US President Donald Trump and French President Emmanuel Macron hold a joint press conference at the White House in Washington, DC, on April 24, 2018. (Photo by LUDOVIC MARIN / AFP) (Photo credit should read LUDOVIC MARIN/AFP/Getty Images)
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Trump has 'terrible' phone call with Macron
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WH confirms Trump, Putin discussed meeting
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TOPSHOT - A vendor picks up a 100 yuan note above a newspaper featuring a photo of US president-elect Donald Trump, at a news stand in Beijing on November 10, 2016. The world's second-largest economy is US president-elect Donald Trump's designated bogeyman, threatening it on the campaign trail with tariffs for stealing American jobs, but analysts say US protectionism could create opportunities for Beijing. / AFP / GREG BAKER (Photo credit should read GREG BAKER/AFP/Getty Images)
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Trump announces withdrawal from Iran deal
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US President Donald J. Trump delivers his first address to a joint session of Congress from the floor of the House of Representatives in Washington, DC, USA, 28 February 2017. / AFP / EPA POOL / JIM LO SCALZO (Photo credit should read JIM LO SCALZO/AFP/Getty Images)
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Trump's foreign policy: One thing to know
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