The US pays about 22% of the UN bills.
Remove the funding of the UN would make the UN wither up and die.
“U.S. Pays $3B for UN—More Than 185 Other Countries Combined”
http://www.cnsnews.com/news/article/patrick-goodenough/us-pays-3b-un-more-185-other-countries-combined
That will work. Thank you for the link too!