Conversation so far:
What Was Bothas role in aprtheid?
He legalised interracial marriage and miscegenation, both completely banned since the late 1940s.
Was this a popular move on his part?
CANNOTANSWER.
Did he change any other laws during this time?
The constitutional prohibition on multiracial political parties was lifted.
Were there any other segregation laws that he impacted?
He also relaxed the Group Areas Act, which barred non-whites from living in certain areas.
What other impacts did he have on the government segregation issues?
In 1988, a new law created "Open Group Areas" or racially mixed neighborhoods.
How many years was he active in fighting segregation?
CANNOTANSWER.
What other significant factors stand out in his fight against segregation?
Botha also became the first South African government leader to authorise contacts with Nelson Mandela.
What was the result of his contacts with Mandela?
However, in the face of rising discontent and violence, Botha refused to cede political power to blacks and imposed greater security measures against anti-apartheid activists.

Question: did this cause rioting and protests?
Self-contained rewrite: did Botha refusing to cede political power to blacks cause rioting and protests?