Must approve tribal constitutions. a. the president of the united states b. the united states congress c. the us homeland security department d. the us secretary of the interior

The one that must approve tribal constitution is: D. The US Secretary of the Interior

Tribal constitution refers to the regulations that is made to manage the relationship between untied states government with the natives american tribes. US secretary of the interior played a very crucial role in this relationship because they are the one that managed the division of Federal owned land, including those that subsidized to the tribes.

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.