[1] Ahead of the 1963 Alberta general election, Clark's riding was largely merged with nearby Olds to form Olds-Didsbury.
[1] Clark easily retained his seat in the 1971 general election even as the Social Credit government was defeated.
The Socreds lost 23% of its popular vote and fell from 25 to four seats in the Legislature, barely holding onto official status.
In six years as opposition leader, he made little headway on the Tories under Peter Lougheed, who had rapidly built up a machine that dominated Alberta politics as Social Credit had done in its heyday.
Under Clark, Social Credit earned a larger share of the popular vote in the 1979 general election, but failed to win more seats.
In his home district he won with the biggest plurality of his career as he remained personally popular.
The separatist Western Canada Concept won his former riding by a resounding margin in the subsequent by-election.
[9] In a snap election held a year later, Social Credit lost its remaining seats in the legislature, never to return.
After leaving political office, Clark became a consultant for Hill and Knowlton and Public Affairs International.