new york group least six wealthy republican donors urge billionaire koch brothers step sideline u.s. presidential election back donald trump argue want influence new york businessman harshly criticize win white house november financier prominent members sprawl 700-member koch donor network make case email phone call charles david koch ahead bi-annual donor seminar begin saturday colorado accord four donors involve loosely-coordinated effort advisers represent two others endorsement kochs would radical departure industrialist brothers rail trump monstrous rhetoric protectionist policies immigration trade say get involve presidential election instead focus senate race trump blast donor class vow become puppet outside interest campaign win nov. election room detente trump vice presidential run mate indiana governor mike pence long darling koch network trump fledgling campaign finance operation could use cash injection face billion general election battle democratic rival hillary clinton think impossible beyond realm possibility point kochs go get involve say doug deason member koch network deason meet trump confidantes say father billionaire darwin deason propose charles koch email meet republican nominee person think really important donald convince charles right guy charles influence donald policies say deason charles koch indicate take wait see approach completely write off adviser another major koch network donor add koch donor class weekend surely go say hey guy get board spokesperson trump schedule hold two campaign events colorado friday respond request comment jam davis spokesman koch political operation freedom partner action fund decline comment billionaire donors eye trump stress believe urgent koch brothers conservative think start influence trump election still fine-tune policy consider possible cabinet pick koch network make wealthy conservative families america rival republican democratic party resources scope membership require payment least 100,000 per year mean monolithic group donor summit last january palm spring california donors seem vehemently oppose trump among large field republican options trump nomination vanquish 16 opponents primaries see little option back broadcast magnate stanley hubbard oppose trump early year want kochs support say concern prospect democrat nominate people vacancies supreme court lot us give lot money kochs would expect would see right supreme court justices select hubbard say supreme court justices last lot long president say hop weekend confab colorado would persuade kochs rethink trump nothing else kochs good ask show hand say hubbard think people room weekend say yes need get involve exclusive billionaire republican donors urge kochs back trump