Quote
The Detroit convention that nominated Reagan adopted a platform that would be anathema to the party today. From abortion ("while we recognize differing views on this question among Americans") to ballot security ("Republicans support public policies that will promote electoral participation without compromising ballot-box security") to language ("Neither Hispanics nor any other American citizens should be barred from education or employment opportunities because English is not their first language") and immigration ("United States immigration and refugee policy must reflect the interests of our national security and economic well-being"), the party changed much more than I did.
http://www.philly.com/philly/opinion/20160320_The_Pulse__Time_to_have_a_say_and_join_the_party_.html
You can just hear Old Dutch saying, "I didn't leave the Republican Party. The Republican Party left me."