Jeb Bush Enters US Presidential Campaign

prosperity – n. being successful, usually by earning a lot of money

core – adj. central; n. – the main part or center of something

premise – n. an idea or statement that is used as the basis of an argument

vulnerable – adj. easily hurt or damaged

signal – v. to be sign of something; to show the existence of

stumble(d) – v. to speak or act in an awkward way