Impeachment law proposal
Impeachment law proposal can be submitted by any congressman. Impeaching president is the only way to depose the president.
After successful impeachment (two thirds (2/3), 66.67% votes of the active congressman of that day are required), another citizen become a new president. The following president is the citizen who achieved second best result in previous presidential election. If are 3vs1 impeach don´t save. If there were no candidates, there will not be a new president, therefore the country can not perform any actions that are done by the president, until a new president is elected.
New president can be elected by "Elect president" law. Or the second on elections is selected.