it's leaders have been critical of the erdowan.nt us this update from istanbul. >> reporter: this is a crucially not just for the justice and development party but for the entire nation. it is the changing the constitution. the ruling party declared the intention of changing the parliamentary into an executive presidency. in order to do that they need to win 330 seats in the 550 parliament. if they got that number they would be able to call for a referendum for the people to vote and choose if they approve the new constitution. if they won two-thirds of those seats in parliament then they will be able to change the constitution right away. now, that happens, the opposition says turkey is shifting towards a dictatorship the ruling act party argues that the current constitution was written under a military coup in 1982 and turkey deserves a better civilian constitution in modern turkey. >> joining me is professor of political science. thank you for speaking to us. what are the indications, then for the ruling act party getting the ma

♪ >> the polls are closed in turkey'sly which will determine whether president erdowan can increase hisowers. ♪ this is al jazeera live from donelon. also coming up the saudi-led coalition jets bomb headquarters in sanaa. the u.n. envoy tells us he is opt mistic about next week's peace talks. a summit on a mountain leaders of the g7 countries meet in southern jaerment. >>> crowded on to boats like this, hundreds more are rescued in the mediterranean sea. ♪ let's start in turkey where voting has been taking place in the parliamentary election which could redefine the country's political system. the president is trying to win the big majority which would allow him to change the country's constitution delivering more powers to the presidency. opposition parties including the kurdish hdp are looking to thwart his ambitions, hoping to end it for the first time. the vote is finished. we are expecting the first preliminary results in around two hours' time. what's happened so far: >> reporter: this is a crucial election and voters know it. it's outcome could change politics politics. this is t

have correspondents around turkey to bring us the latest on this outside of the head quarters of erdowan's arc party and bernard smith is with the kurdish htp. let's start with jamal. jamal, looking at the numbers, how confident are the arkansas party they are on course for the big win they have been aiming for? >> well i will tell you something i have just come out from that building behind me. they are a bit edgy inside. the officials who are closely monitoring the big screen of all of the different considerancies across turkey and trying to count every little detail here maybe things route now aren't looking as optimistic as they would have opened hor. as you say, there are applying results, sizeable votes that haven't encountered. the big metropolises are still not confirmed, they are going to still be the main party in turkley with they trust the threshold of being able to be a single party that ruled the party is looking slightly in doubt with these results, but like i say i have to stress they are still preliminary results. there was never any doubt that they would have that single

. ♪ >> the polls are closed in turkey'sly which will determine whether president erdowan can increaseis powers. ♪ this is al jazeera live from donelon. also coming up the saudi-led coalition jets bomb headquarters in sanaa. the u.n. envoy tells us he is opt mistic about next week's peace talks. a summit on a mountain leaders of the g7 countries meet in southern jaerment. >>> crowded