The new party led by Tokyo Gov. Yuriko Koike will advocate a halt to the impending sales tax hike and push for further debate on amending the war-renouncing Constitution, sources said Wednesday.

Koike's Kibo no To (Party of Hope) will also seek to "have zero nuclear power plants by 2030," the sources said.

The party's stance on the consumption tax and nuclear power indicate an effort to differentiate itself from the similarly conservative ruling bloc headed by Prime Minister Shinzo Abe.