brussels barack obama envoy brussels warn donald trump lunacy back eu break-up say brexit campaigner nigel farage may give incoming u.s. president false impression countries might follow britain bloc anthony gardner banker run u.s. relations european union three years make frank comment friday final news conference week trump order obama appointees quit gardner condemn move unprecedented guillotine exit disrupt public servants live refer trump welcome british vote leave eu apparent influence farage trump camp gardner say us cheerleaders brexit encourage brexit mark mark height folly gardner say farage eu lawmaker trump ally write recently request meet u.s. envoy say farage view polar opposite think farage mislead trump transition team state eu describe call eu institutions trump aid recent weeks gardner say one question ask basically next country leave kind suggest place fall apart reflective general perception misperception perception nigel farage presumably disseminate washington caricature say would fundamentally flaw unite state ignore eu dysfunctional instead focus key ally like britain germany depart 50 years foreign policy regard eu say become cheerleaders brexit particularly brexit appear likely hard disorderly unmanaged brexit hard brexit fragmentation european market would bad news american business add understand ... need make case gardner urge europeans incoming administration break rank sanction russia ukraine trump say want good relations moscow take office next friday urge u.s. diplomats speak frankly new leadership even carry risk career speak respect britain eu ambassador resign month sign behind-the-scenes arguments london brexit ivan rogers say pay price tell political leaders things want hear critically important gardner say loyal new team ... people speak truth power obama 's eu envoy say brexiteer farage mislead trump