Allawi said on Twitter, "It was agreed to postpone the holding of the press conference and continue meetings with various political parties in preparation for an expanded conference in Baghdad."

On Saturday, Sadr met with Allawi in Najaf during the efforts of the parties to form the largest bloc.

Saudi Arabia has officially invited Iraqi VP Iyad Allawy and cleric Ammar al-Hakim and al-Sadr,to visit the kingdom, London-based Al-Arab newspaper reported.

Long before Iraq’s parliamentary election, Saudi Arabia plotted to influence the Iraqi results, as they found their own interests at stake in Baghdad. For one thing, the House of Saud invited Muqtada al-Sadr, the leader of the Sadrist Movement, and Seyyed Ammar Hakim, the leader of National Wisdom Movement (Al-Hikma), to meet with Saudi officials.

However, neither one of the Shia clerics joined the Saudis. The chairman of the Shiite National Alliance also agreed to visit Saudi Arabia only when the Saudi authorities stop the support for terrorism in Syria, the killing of Yemenis, and their interference in Iraq’s internal affairs.

Iraq and Saudi Arabia share more than 800 kilometer borders and they have tribal relationships which require more than just “common interests” and “mutual respect”.

Iraqis officials such as Hakim and al-Sadr believe that Baghdad’s diplomatic relations with other countries should be within a diplomatic framework as they stress that Iraq won’t allow foreign interference on its soil.