As stated in Article 15 of the Constitution, the duty of government employees and that includes politicians is to serve all, not just to serve some. However, when a politician first looks out for the good of his electrial constituency, nothing is thought of it. This trend is a major source of distrust.
There are some pledges which the Democratic Party would find it difficult to make. But there is no party pledge which would satisfy every candidate. The only way to challenge the government and take power is not by looking for a consensus, but by taking risks. The interest of voters must be won back by adopting this kind of radical style. Japan cannot afford to entrust the next four years to a government that does not have the trust of the electorate.