The Democratic Party of Japan's historic victory in Sunday's Tokyo Metropolitan Assembly election was no surprise, many local voters said Monday, expressing dissatisfaction with the Liberal Democratic Party, with some already saying they will vote DPJ in the general election even though they are not earnest backers of the party.

Prime Minister Taro Aso reportedly plans to dissolve the Lower House on July 21 or later next week and call for an Aug. 30 election.

He can expect to face a tough time.