The supreme court's main concern is

hearing cases concerning the actions of elected officials
deciding if a law passed by congress is actually legal
deferring to the senate who must confirm supreme court justice appointments
deciding whether the case before them is within the guidelines of the constitution

Deciding whether the case before them is within the guidelines of the Constitution

Explanation:

Determining whether a case is constitutionaly correct or incorrect has always been the main focus or concern of the Supreme Court.

frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. but frederick disliked rifle shooting and horseback riding. unlike his father, he was interested in french literature. he enjoyed poetry and music and, like some others of the enlightenment, he scoffed at religion. his father thought him soft, frivolous and unmindful of his duties. and when frederick refused to put his signature on a right to succession, for a few moments his father strangled him.