Why Trump's appearance at White House correspondents dinner is triggering controversy

https://i.cbc.ca/ais/40161e1b-dd69-41bf-a109-3bae5fdd8cfb,1776987807560/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C212%2C4079%2C2294%29%3BResize%3D%28620%29" title="U.S. President Donald Trump speaks with reporters on the South Lawn of the White House on April 16." width="620" />

U.S. President Donald Trump, who regularly attacks news coverage and journalists he dislikes with lawsuits and verbal tirades, will be the featured guest at Saturday's White House Correspondents' Association dinner, and annual gala celebrating freedom of the press.