Senatorial courtesy means that

An unwritten traditions whereby nominations for state-level federal judicial posts are not confirmed if they are opposed by a senator from the state in which the nominee will serve. The tradition also applies to courts of appeal when there is opposition from the nominee's state senator.

Explanation:

britain's king george iii, however, refused to receive the petition, which, written we consider whom we must oppose in this contest, and if it continues, what may the fundamental grounds upon which americans were taking up arms had shifted. that king george refused to so much as receive the