I take your original meaning well enough but is it possible to be a politico of that level and not really be a millionaire?Especially after he filled his administration with millionaires.
http://work.chron.com/average-salary-newly-elected-congressman-7774.html reckons $174K as a base salary per year for a congressman if they are going the plain politco route. Be a partner in a law firm or a C level business type and that is not much more.
Easy enough to top a million with that.