The first "Trump" billionaire in power with many conflicts of interest was Silvio Berlusconi, for many years.   If he could run a right wing coalition of many parties represented under a system of proportional representation, then it will not stop a Donald Trump.  Sorry, Ed.  If the NDP wants to win a majority of votes put of all parties in a one person one vote system, they should convince us to vote for them.  Our two major parties already form a centre left and right coalition, with the centre of the bell curve, although not perfect, being a good representation of our population's majority.