From “The Human Condition: A User’s Manual,” by Arnold Kunst
F.D.R. should never have won the presidency - never mind four times! - because of his polio; Truman, an abrasive country boy, should have lost the job he accidentally got to the slick professional assault of the Dewey machine of 1948; Ike started his political career having trouble focusing on which political party he belonged to; Kennedy was too young, too Irish, and too Catholic to get elected; L.B.J. should have gone under in the hurley-burley of Washington politics, never mind the pressures of the presidency, with his bad heart. Nixon lost the Presidency in 1960, then the California governorship in 1962 – then elected President in 1968.
I’ll stop there. These men didn't stumble into the achievement of their goal. They got there after they decided to get there.