Liberal Democratic Party has been on top for almost five decades . Voters disgruntled with slow progress on economic recovery . TOKYO , Japan ( CNN ) -- The Conservatives have a strong lead in the polls and are expected to win at least 40 seats — enough to form a majority government. DPJ 's Yukio Hatoyama has Obama-style message of change .
Liberal Democratic Party has been on top for almost five decades . Voters disgruntled with slow progress on economic recovery . The Conservatives have a strong lead in the polls and are expected to win at least 40 seats — enough to form a majority government. DPJ 's Yukio Hatoyama has Obama-style message of change .