1845- Manifest Destiny is declared in the United States. June 14, 1846- The California Republic declares independence from Mexico following the onset of the Mexican-American War. July 9, 1846- California is invaded by US Forces, and under the order of President Clay, is set up as an independent nation from Mexico, but a close satellite of the United States. 1847- The constitution of the Californian Republic is finalized, and closely mirrors the United States constitution in terms of governmental setup. Commander Ide is set up as the puppet president. 1850- Californian Democratic Party is founded.