October 30, 2012
The President will remain in Washington, DC on Wednesday to monitor the response to Hurricane Sandy and ensure that all available federal resources continue to be provided to support ongoing state and local recovery efforts. As a result, the President will not participate in the campaign events that had been scheduled in Ohio tomorrow.
Barack Obama, Statement by the Press Secretary on the President's Schedule Tomorrow Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/303448