In desperation, President Santiago Méndez offered Yucatecan sovereignty in exchange for military assistance to the governor of the island of Cuba, the admiral of Jamaica, the ministers of Spain and the United Kingdom, but none responded to his pleas. Finally, the Yucatecan delegation in Washington made a formal offer for the annexation of Yucatán to the United States, an argument that appealed to some of the radical expansionists and the Young America movement. President James Knox Polk was pleased with the idea and the "Yucatán Bill" passed the U.S. House of Representatives, but was discarded by the Senate. The war with Mexico had become more complicated than anticipated, and the US Congress did not want a second war with the indigenous of Yucatán.