It invests $2.5 billion in the Indian Housing Block Grant and the Native Hawaiian Housing Block Grant to build or rehab 200,000 homes on tribal land. And it invests $4 billion in a new Middle …It invests $2.5 billion in the Indian Housing Block Grant and the Native Hawaiian Housing Block Grant to build or rehab 200,000 homes on tribal land. And it invests $4 billion in a new Middle …