republicans is the answer to his
False , They were killed by members of the Cayuse tribe who accused Whitman of having poisoned 200 Cayuse in his medical care. The incident began the Cayuse War.
The answer for this is "Compromise of 1850".
The Compromise of 1850 is a set of laws dealing with the issue of slavery. California was admitted as a free state, upsetting the groups in favor of slavery and satisfying those opposing it in the U.S senate. In Addition, California abolished the slave trade by entering the Union as a free (no slavery) state.