Biden can’t save Ukraine

Why is the heroic image of Biden’s surprise visit to Kiev fake? Afraid Putin might shoot down his plane, notified Putin in advance! It is impossible for Biden to save Ukraine? 拜登爲什麽突訪基輔的英雄形象是假的, 因忙普京把他的飛機打下來, 所以預先已經通知普京手下留情. 拜登不可能力挽敗局?