unite nations new u.s. ambassador unite nations nikki haley pledge friday overhaul world body warn u.s. ally support washington take name respond haley make brief remark reporters arrive world body headquarter new york present credentials u.n. secretary-general antonio guterres goal administration show value u.n. way show value show strength show voice back ally make sure ally back well haley say back take name make point respond accordingly add republican president donald trump u.n. envoy haley south carolina republican governor trump pick post little foreign policy u.s. federal government experience french u.n. ambassador francois delattre british u.n. ambassador matthew rycroft say look forward work haley unite state britain france along russia china permanent veto-wielding members u.n. security council meet guterres u.s. official say good productive conversation ways work together reform u.n. haley tell reporters everything work go make good everything work go try fix anything seem obsolete necessary go away with accord draft executive order publish daily beast trump want committee include secretary state attorney general director national intelligence -to carry one-year review u.s. fund international organizations aim almost halve voluntary fund senior u.s. administration official say friday executive order expect time unite state large contributor unite nations pay 22 percent 5.4 billion core u.n. budget 28 percent 7.9 billion u.n. peacekeeping budget assess contributions agree u.n. general assembly voluntary payments u.n. agencies u.n. development programme children agency unicef world food programme u.n. population fund fund voluntarily last year trump take twitter disparage 193-member world body unite state abstain dec. 23 u.n. security council vote allow adoption resolution demand end settlement build u.s. ally israel trump call president barack obama administration veto resolution warn things different unite nations take office jan. 20. new u.s. u.n. envoy warn ally back us 'll take name