Elections for a new Ukraine president take place Sunday after months of unrest and clashes between the interim government in Kiev and pro-Russian separatists in the east, who threaten to disrupt the voting. The oligarch Petro Poroshenko, known as the “chocolate king,” is the favorite to win among the 18 candidates, followed by former prime minister Yulia Tymoshenko. If no candidate polls more than 50 percent, a second round takes place on June 15. Russian President Vladimir Putin said on Friday that he would respect the outcome of the election and was prepared to work with whoever was elected president.