Conversation so far:
what happened in the general elections for Recep Tayyip Erdoğan?
The elections of 2002 were the first elections in which Recep Tayyip Erdoğan participated as a party leader.
what did Recep Tayyip Erdoğan do as party leader?
During the 2003 rescheduled election, Party leader Recep Tayyip Erdoğan was able to run for parliament due to a legal change made possible by the opposition Republican People's Party.

Question: what did that party do?
Self-contained rewrite: what did that party do?