A senior Christian Democrat criticized German Foreign Minister Frank-Walter Steinmeier's stance on Ukraine and Russia in a signal of a possible rift appearing within Chancellor Angela Merkel's right-left coalition over relations with Moscow. Conservative leader Merkel and Steinmeier, who is a senior member of the Social Democrats (SPD), have been at pains to stress how closely they are coordinating on policy since the Ukraine crisis began, despite the traditionally warmer ties to Moscow maintained by the leftist SPD.