Updated 1:18 p.m.
McCain said that the country's three leading political leaders invited him and other senators to come and show support for the Ukrainian people. The Arizona senator traveled to Ukraine in December, where he and Murphy addressed opposition protesters in Kiev's Independence Square. McCain also visited the country during the 2004 "Orange Revolution."
McCain confirmed the trip as the Senate Foreign Relations Committee is expected to approve an aid package for Ukraine Wednesday afternoon that differs from a measure approved by the House last week.