vilnius u.s. president-elect donald trump choice secretary state rex tillerson explain relationship russian leader vladimir putin confirmation hear senior republican senator john mccain say thursday mccain chairman u.s. senate arm service committee also call president putin thug murderer speak tour baltic state widespread concern moscow want reassert power across region mccain say concern tillerson oppose sanction russia annexation crimea several colleagues concern mr tillerson past activities specifically relationship vladimir putin mccain tell reporters concern time certain give mr tillerson opportunity make case qualify secretary state exxon mobil chief executive tillerson could face rocky confirmation process give worry among democrats republicans connections russia possible conflict interest relate business tie relations moscow washington deteriorate follow russia annexation crimea 2014 two nations also loggerheads syria obama administration also plan series retaliatory measure russia hack u.s. political institutions individuals leak information trump say unite state move controversy mccain however say unite state need reassure voters abroad elections would influence foreign power agree president elect need get live without elections affect outside influence especially vladimir putin thug murderer say fellow republican senator lindsey graham travel mccain call sanction russia widen target areas like energy directly aim putin think sanction need go beyond today need name putin individual inner circle nothing happen russia without knowledge approval graham say senator mccain say 'concerns tillerson nomination