Trump's administration set to have unprecedented number of billionaires / Why the wealth of billionaires in the Trump Cabinet matters / Billionaires have business interests hinging on election outcome / Column: Here are the billionaires in thrall to Trump, and why / Battle of the billionaires: Arnault loses out to Bezos for world's richest man title / Class Consciousness for Billionaires / All billionaires under 30 have inherited their wealth, research finds / Forbes has released its list of the world's billionaires / Billionaires and their educational qualifications / Memoirs by the Unapologetic Rich: Gloria Vanderbilt, Guy de Rothschild, David Rockefeller and Others