Wisconsin Governor Scott Walker announced his withdrawal from the Republican presidential nomination in a speech he made at a hotel in Madison on September 21, 2015. Gov. Walker’s fall from contender to someone whose support rated no more than a statistical asterisk was breathtakingly fast. Gov. Walker struggled to articulate a message different from Republican presidential front runner Donald Trump, a billionaire real estate developer. In his concession speech, Gov. Walker did not mention Trump by name, but urged other long-shot Republican candidates to consider withdrawing as well. The party, he said, needs “a positive, conservative alternative to the current front runner. This is fundamentally about the future of our party.” In response Trump, who is notorious for his sharp insults, said only that Gov. Walker had a bright future Web Photo in politics.