A Kyodo News weekend poll released Monday found 38.5 percent of voters voicing support for the Democratic Party of Japan, compared with a record-low 19.8 percent backing Prime Minister Taro Aso's Liberal Democratic Party.

The support rate for the Cabinet was just 17.5 percent, down 8.7 percentage points from last month, according to the weekend survey of 1,039 randomly called voters.

The result is expected to deal a severe blow to the Cabinet and possibly prompt some LDP members to campaign for Aso's ouster as LDP president before the next Lower House election, which must be held by October.