 His announcement in 1908 that he would retire in 1911 unleashed a widespread feeling that Díaz was on the way out, and that new coalitions had to be built.He nevertheless ran for reelection and in a show of U.S. support, Díaz and Taft planned a summit in El Paso, Texas, and Ciudad Juárez, Mexico, for October 16, 1909, an historic first meeting between a Mexican and a U.S. president and also the first time an American president would cross the border into Mexico.Both sides agreed that the disputed Chamizal strip connecting El Paso to Ciudad Juárez would be considered neutral territory with no flags present during the summit, but the meeting focused attention on this territory and resulted in assassination threats and other serious security concerns.