Although the candidates are selected instead of elected, the process has to follow strict standards. 1. The candidates have to be always in the political system.
1 An example of mettle is a soldier's bravery.  An example of mettle is a person who has spirit and courage.
noun. 1  Any of a category of electropositive elements that usually have a shiny surface, are generally good conductors of heat and electricity, and can be melted or fused, hammered into thin sheets, or drawn into wires. 2  An alloy of two or more metallic elements. 3  An object made of metal. 4  Basic character; mettle.