BEIRUT, April 28 (Reuters) - Syrian president Bashar al-Assad has formally submitted his **mination to seek a third term in ****** in an election due to be held in early June, the speaker of parliament said on Monday. Reading out a letter he said was submitted by Assad to the constitutional court, the speaker quoted Assad as saying: "I ... Dr Bashar Hafez al Assad ... wish to **minate myself for the post of president of the republic, hoping that parliament will endorse it." (Reporting by Dominic Evans; Editing by Janet Lawrence)