More than 80 percent of the winning candidates in Sunday's election approve of amending the Constitution, far exceeding the two-thirds majority required to propose a constitutional amendment for a national referendum, according to a Kyodo News survey.

The 389 supporters account for 84.9 percent of the 458 winners who responded to the questionnaire during the campaign, in which 475 Lower House seats were contested.

Following the victory by the ruling coalition led by the Liberal Democratic Party, Prime Minister and LDP President Shinzo Abe expressed his willingness at a news conference Monday to seek an amendment to the U.S.-drafted Constitution.