Complex sentence: His career as a political consultant spanned the period from the 1964 Presidential candidacy of Barry Goldwater through George H. W. Bush's 1992 re-election campaign, and he co-wrote Bush's 1987 autobiography.
Split into simpler sentences: His career as a political consultant spanned the period from the 1964 Presidential candidacy of Barry Goldwater through George H. W. Bush's 1992 re-election campaign. His published works include several works of non-fiction, as well as co-authorship of George H. W. Bush's 1987 autobiography.