As reported by Censor.NET, spokesperson for the president Sviatoslav Tseholko wrote on Twitter.
"A very cordial and friendly meeting with Bill Clinton," he commented.
As reported, Poroshenko announced having a meeting arrangement with U.S. President Barack Obama before his trip to America.
Earlier, Poroshenko said Sept. 16: "I also requested meetings with the two [U.S. presidential] candidates. One of them - Hillary Clinton - has already given the consent. We expect Trump to confirm the meeting as well. I believe our arguments are feasible enough to motivate them to support Ukraine."