Istanbul is currently a city with parallel realities.
In daily press conferences – and on his Twitter biography – Ekrem Imamoglu of the opposition CHP party says he's the new mayor.
Preliminary election results have shown that last weekend, he won the local election with around 25,000 votes.
But throughout the city the ruling AK party has set up winners posters in which President Recep Tayyip Erdogan and the candidate Binali Yildirim thanked Istanbul for the victory.
The government has challenged the results of Istanbul and ordered recounts.
Although it won the most votes in the whole of Turkey, it lost the capital Ankara and Izmir. The AKP also denies the victory of the CHP in Ankara.
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President Erdogan seems unwilling to let go of Istanbul ̵
"It's not polite behavior," Ekrem Imamoglu said about the AK Party posters. "We have the results of the electoral board and know who is at the top," he told me in a BBC interview across the city: "Thank you, Istanbul."
The AK Party says that invalid votes in all polling stations have jeopardized the outcome and called it "the biggest stain in Turkish democratic history".
"Of course I do not agree," says Imamoglu.
"Until yesterday, the government and the ruling party claimed that Turkey had the most credible voting system and highly praised it, when one million people were deployed in the polling stations that night
" If there were suspicious activities they would record it and write a report – that's the official procedure here.
"The only explanation I have is that they make excuses for their failure."
The challenge of the government has led to allegations of hypocrisy. It denied the opposition the right to challenge the controversial outcome of the local elections in Ankara in 2014.
And in the 2017 referendum on the change of Turkey's political system in favor of President Erdogan, the state electoral body ruled that non-stamped ballots would be counted.
Opposition parties cried again badly, but were quickly written down by the government.
The loss of Ankara, Istanbul and some other cities would be a major blow for Mr Erdogan and could be a turning point after 16 years.
So, I ask Ekrem Imamoglu, the beginning of the end of the power of the President.
"Everything comes to an end," he replies. "Parties, governments, life itself. Mr. Erdogan has ended his 17th year in power, there are issues and things we do not like – but it's a political success, and of course it will eventually come to an end."  The apparent success of the CHP in Istanbul and Ankara has rejuvenated the opposition, which has long been dismissed and broken as a moribund. And it broke Mr. Erdogan's aura of invincibility.
Is Ekrem Imamoglu, I ask, the next president of Turkey.
"God knows," he says with a giggle.