Conversation so far:
How did George H. W. Bush get his political start?
George H. W. Bush's career in politics began on February 20, 1963 when he was elected chairman of the Harris County, Texas Republican Party.
How did George H. W. Bush get more involved in policy making?
What did George H. W. Bush accomplish during his early political career?
In 1964, George H. W. Bush won the Republican primary by defeating former gubernatorial nominee Jack Cox in a run-off election.
Are there any other interesting aspects about George H. W. Bush's article?
Ronald Reagan and George H. W. Bush ran for reelection in 1984.
Was the Reagan-Bush 1984 reelection campaign a successful run?
Reagan-Bush ticket won in a landslide against the Mondale-Ferraro
Did George H. W. Bush run again?
Yes
What else did George H. W. Bush accomplish during the 1980s?
George H. W. Bush supported the Nixon administration's Vietnam policies, but broke with Republicans on the issue of birth control, which he supported.

Question: How did he break them on the birth control issue?
Self-contained rewrite: How did George H. W. Bush break with Republicans on the birth control issue?