By 1849, he had arrived in California, briefly prospecting in Grass Valley before finding a job at a drug store in San Francisco.[2] A Lecompton Democrat who favored slavery in the Kansas Territory, Downey was elected as a member of the lower house California State Assembly for the 1st District, serving from 1856 to 1857.In a move that stunned many wealthy former supporters, he vetoed the Bulkhead Bill, writing: [I]ts provisions are not only in conflict with the constitution and the principles of natural justice, but that the measure as a whole is calculated to work irreparable injury to our commerce, internal and external, of which San Francisco is and must forever remain a metropolis.Previously part of the Lecompton faction, Downey sided with Anti-Lecomptons, supporting Douglas in his failed bid against Abraham Lincoln.It meant continued submission and subserviency to slavery and the slave power, which had hitherto dominated the country while the advance of the age had outgrown it ...It cannot be said that Downey had any special love for slavery or the slave power; on the contrary, he had to a very considerable extent broken loose of the chivalry and what was called an Anti-Lecompton Democrat; but unfortunately for himself, he was still hampered with old-time doctrines when slavery ruled unquestioned ...[4]With the Civil War in its first stages by the 1861 general elections, Downey's earlier support generated by his veto of the Bulkhead Bill had all but evaporated.When Widney formed a board of trustees, he secured a donation of 308 lots of land from three prominent members of the community: Ozro W. Childs, a Protestant horticulturist; Hellman, a German-Jew; and Downey.The gift provided land for a campus as well as a source of endowment, the seeds of financial support for the nascent institution.In 1892 he moved to evict Cupeño American Indians who occupied some of the land as their traditional historic territory, especially near the hot springs (Agua Caliente.)While the court ruled the Cupeño did have a right to land, it said they had waited too long to press their case, according to a law about the issue when California entered the Union.