The main opposition Democratic Party of Japan won the Tokyo Metropolitan Assembly election on Sunday.

As a result, Japan may see a power shift in the election to select members of the Lower House. The election is expected to take place next month.

The results of the Tokyo Metropolitan Assembly election are a major barometer of what will happen on the Japanese political landscape at the nationwide level.

The main opposition party won 54 of the overall 127 seats, while the ruling coalition of Prime Minister Taro Aso’s Liberal Democratic Party and its New Komeito partner coalition gained 61 seats, just three shy of the number needed to maintain its majority in the assembly. The LDP won 38 seats and Komeito 23.

Japanese media predict a change in leadership in next month's Lower House election, saying that voters expressed their distrust Sunday of the current government led by Aso.

There have been calls within the LDP to replace Aso in favor of a more popular leader prior to the Lower House election.