Donald Trump has a street fighter's instinct for locating and then jabbing at his opponents' weak spots — Jeb Bush's enervated demeanor, Carly Fiorina's poor stewardship as chief executive of Hewlett-Packard or Scott Walker's miserable economic record in Wisconsin. However, though some political observers have noted that the Wisconsin governor's presidential candidacy peaked about the time Trump entered the contest for the Republican nomination, the Donald cannot claim credit for Walker's swift decline and sudden exit from the race. Walker did it all by himself.
As soon as he declared his presidential candidacy less than three months ago, Walker began to demonstrate he was out of his depth. When an interviewer asked what qualified him to be commander in chief of the military, he talked about his experience as an Eagle Scout. Visiting the United Kingdom to bolster his nonexistent credentials in foreign affairs, he was laughed at by a television audience when he refused to say whether he believed in the theory of evolution. When Trump’s inflammatory comments about immigration began to crowd out other issues in the campaign, Walker waffled on the issue and ended up suggesting there should be a border wall with Canada.