The type of government in which one person holds supreme power

it can either be a Monarchy - a government in which the supreme power is lodged in the hands of a monarch who reigns over a state or territory, usually for life and by hereditary right; the monarch may be either a sole absolute ruler or a sovereign - such as a king, queen or prince - with constitutionally limited authority.

or a dictatorship were one person rules the whole place and that one person holds all supreme power

to demand women’s suffrage

impeachment is when a president is committing treason or doing shading acts while in presidendcy therfor he can be impeached   by congress