Iraq's Prime Minister has called on all political rivals to join negotiations to end the country's seven-month government impasse. Speaking to a group of Iraqi tribal leaders today, al-Maliki said political leaders must put aside differences and open talks to end the political deadlock.The appeal by Nouri al-Maliki comes as his coalition is holding talks with various parties to get a parliament majority and the right to form a new government. Iraq is waiting for the new government after parliamentary elections in March that failed to produce a clear winner.