President of the Senate, Ahmad Lawan has challenged those who were critical of the National Assembly to a debate on the relevance of the Legislature to Nigerians rather than criticising the funding of the Assembly. Lawan threw up the challenge in Abuja on Friday while declaring open a retreat for top management staff of the National Assembly and National Assembly Service Commission. “What does the National Assembly mean to Nigerians what does the legislature mean to Nigerians. “We need to understand what the National Assembly or what the Legislature is…