Why Does Donald Trump Lie About Voter Fraud?

http://www.nytimes.com/2016/12/05/opinion/why-does-donald-trump-lie-about-voter-fraud.html?action=click&pgtype=Homepage&clickSource=story-heading&module=opinion-c-col-left-region&region=opinion-c-col-left-region&WT.nav=opinion-c-col-left-region&_r=1