Politics Forget quantum physics, here's how the NDP chooses its leader Add to ... The Globe and Mail Published Wednesday, Mar. 07, 2012 9:00AM EST Last updated Wednesday, Mar. 07, 2012 12:37PM EST John Ibbitson explains the preferential ballot system that will determine the next Leader of the Official Opposition Watch More Video: B.C. man with one hand takes on competitive shooting world Art show delves into Canada's treatment of indigenous peoples Pakistan's transgender community holds rare party under police guard See the destruction left by a Nigerian air strike ona refugee camp Dogs sightsee in London on special tour bus Vancouver lion dancers prepare for Chinese New Year Defence lawyer hopes to keep Calgary mom Tamara Lovett out of jail President Trump again claims voter fraud in popular vote Freeland on NAFTA: Canada's ties with U.S. mostly 'bilateral' White House spokesman Spicer defends inauguration claim Donald Trump is a 'businessman': Environment Minister Catherine McKenna Health of former president George H.W. Bush, wife improves: doctor Trump signs order withdrawing U.S. from TPP deal Puppies rescued from Italy avalanche hotel Video: Hopes low as Syrian talks open in Astana Video: Farmers spray milk powder on EU Council in protest Heavy rain causes flooding in southern California See the destruction left after deadly storms strike South Georgia Trump thanks law enforcement for inaugural protection Sanders says Trump's 'establishment' attacks are 'amusing' Comments Share via email Share on facebook Share on twitter Share on LinkedIn Print More Related to this Story Will Cullen be Mulcair's kingmaker in NDP leadership race?