Montenegro’s longtime leader is poised for a landslide re-election in a parliamentary vote lacking in suspense.Milo Djukanovic has dominated political life in the Adriatic Balkan nation for two decades. And his hold on power is not about to end if the opinion polls are right. They suggest the prime minister’s coalition for a European Montenegro will win more than 50 percent of the vote on Sunday. The main challenge in these early elections comes from the Socialists, who have campaigned for better wages and pensions. But Srdjan Milic’s party is trailing. Fellow opposition leader Andrija Mandic is at the forefront of efforts to strengthen ties with Belgrade. But his New Serbian Democracy group is even further behind Djukanovic, who led Montenegro’s breakaway from its union with Serbia.