washington two top aid president-elect donald trump deny publish report saturday plan hold summit russian president vladimir putin weeks take office sunday time london report trump tell british officials summit plan possibly stag icelandic capital reykjavik story fantasy one trump aide tell reuters speak condition anonymity another say report true trump take office jan. 20 speak seek warm relations russia tell wall street journal friday would least period time maintain sanction russia put place president barack obama cyber hack trump suggest newspaper might lift sanction russia prove helpful fight islamic state militants u.s. objectives two trump cabinet pick secretary state nominee rex tillerson defense secretary nominee jam mattis signal far harsh tone toward moscow senate confirmation hear u.s. intelligence agencies blame russia cyber hack interfere u.s. presidential election trump say accept intelligence agencies conclusion trump aid deny summit putin plan