Complex sentence: Texas Democrats have said that Perry didn't oppose other elected officials who were convicted of drunk driving in Texas though Republicans argue that none of the other elected officials were responsible for an office responsible for the ethics and integrity of public officials.
Split into simpler sentences: Texas Democrats have said that Perry didn't oppose other elected officials who were convicted of drunk driving in Texas. Republicans say that none of the other elected officials were responsible for an office responsible for the ethics and integrity of public officials.