One Must not Make Dua Against the Ruler

One mustn’t make dua against the ruler, praying for his misfortune, Even if he sees that the ruler is wrong - he mustn’t make dua (supplication) against him or wrong him. Suppose he made a mistake, then he should ask Allah the Exalted to guide him to righteousness and aid him in achieving good and repelling evil. If one knew that by his dua the president of the Jewish State would accept Islam, then we would pray for him to accept Islam. Yes.