Sequoya Becomes a State

What if in 1865, Aberham Lincoln, hot off winning the Civil War, signs one last bill into law before his untimely death splitting OTL Oaklahoma in half forming the state of Sequoya (reserved for the native am

ericans) in the East & the Oaklahoma Territory, for white colonization, to the West (Including the panhandle). how d o you think history would have played out if the indiand had got their long sought after state?