(CNN) — John McCain’s general election campaign began as “the strategic equivalent of throwing a football through a tire at 50 yards” – and was doomed weeks before Election Day, his former chief strategist said Thursday. “We were running a campaign under extra difficult circumstances — the state of the Republican Party, the president’s unpopularity, the economy — a lot of issues that were not John McCain’s fault, but were John McCain’s problem in this race,” Schmidt told an audience at the University of Delaware, according to Politico. “When Lehman Brothers collapsed in the fall I knew pretty much right...