President Obama has decided to sign legislation imposing further sanctions on Russia and authorizing additional aid to Ukraine , despite concerns that it will complicate his efforts to maintain a unified front with European allies, the White House said on Tuesday. The legislation calls for a raft of new measures penalizing Russia’s military and energy sectors and authorizes $350 million in military assistance to Ukraine, including antitank weapons, tactical surveillance drones and counter-artillery radar. The bill was approved unanimously by Congress, but Mr. Obama hedged for days on whether he would sign it. Josh Earnest, the White House press secretary, announced the decision to approve the bill even as he described the president’s qualms over it. Mr. Earnest said it sent a “confusing message” internationally, including language “that does not reflect the consultations” with European powers. But in the end, he added, the president opted to allow […]