But that's just for the U.N.'s regular budget. There are over a dozen other U.N. agencies and operations that American dollars also support. The single largest is peacekeeping with a price tag of about $7.8 billion this year alone. The U.S. share of that cost is over 28 percent, or $2.2 billion "2017".
The United States is the largest provider of financial contributions to the United Nations, providing 22 percent of the entire UN budget in 2017 (in comparison the next biggest contributor is Japan with almost 10 percent, while EU countries pay a total of above 30 percent).
Haley accused the U.N. of budgetary excess when making the announcement; while she did not make it clear if all the reductions would come from the U.S., she didn't mention any other nations. The U.N. has an overall $5.4-billion biennial budget, of which the U.S. funds about 22 percent, according to Newsweek. Each member nation is required to make a contribution, but the contributions vary based on factors such as population and gross national income.
"The inefficiency and overspending of the United Nations are well known. We will no longer let the generosity of the American people be taken advantage of or remain unchecked," Haley said, Fox News reported. "This historic reduction in spending — in addition to many other moves toward a more efficient and accountable U.N. — is a big step in the right direction."
These budget cuts may not be the end for the U.N. under Trump's administration. The president's proposed spending budget for 2018 would end funding for U.N. climate change programs and reduce funding for the U.N. Children's Fund — UNICEF — by 16 percent.
Trump has long spoken about making budget cuts to the U.N. and his latest Jerusalem controversy has only heightened tensions. Haley hinted the lack of support of the administration's decision to recognize the Holy City as Israel's capital could serve as further motivation to make cuts. She also said the U.S. would be "taking names" of those who voted in opposition of America's decision to move its embassy to the city.