Ultra-nationalist Sinan Ogan announced Monday that he will support outgoing President Recep Tayyip Erdogan in the second round of the presidential elections in Turkey on Sunday.

"I ask the voters who voted for us in the first round to vote for Erdogan in the second round," said Ogan, who won 5.2 percent of the vote in the first round.

Erdogan won 49.5% of the vote, and his Social Democratic opponent, Kemal Kilicdaroglu, won 44.9%, a difference of 2.5 million votes.

Ogan said, "Our negotiations took place on the following principles: fighting terrorism, setting a timetable for the return of refugees, and strengthening the institutions of the Turkish state."

His result illustrates the sudden surge in the Conservative vote. The question remains: Which candidate will go to the 2.8 million votes that Ogan won, because part of his electorate intended not to vote for Erdogan, who has been in power for twenty years.