Why is there a controversy among historians on this issue?

What was a major component of reaganomics? 1. the belief that tax cuts to the wealthy would trickle down to the less fortunate. 2.the belief that providing tax cuts to lower-socioeconomic americans would boost the economy. 3.the belief that boosting home ownership would lead to americans having an investment in the economy. 4.the belief that correcting the business cycle would boost output and reduce unemployment.

Which of these constitutional amendments made all people born or naturalized in the united states into citizens of the united states ?

Where did the first african american fighter pilots begin training?