A Tunisian political dialogue promised by President Kais Saied was slammed on Friday as a “sham” by one of the country’s main political parties, which has said it will not be participating. Moderate Islamist faction Ennahda was the largest party in Tunisia’s parliament and held almost a quarter of all seats before Saied suspended the legislature as part of a power grab last July. “This dialogue is [an effort] to deepen the political crisis when the economic and financial situation is on the verge of collapse,” Ennahda said in a statement. Saied on Thursday said he would make a decree establish…