The belief that cutting taxes for the rich will eventually result in economic benefits for the poor is commonly referred to as
socialism
pork barrel politics
keynesian economics
trickle-down economics

The theory claims that in order to stimulate business investments that can benefit the general population in the long term, since big business are mainly owned by the wealthy, then taxes on the wealthy and big business should be reduced or eliminated rewarding the risks they take, hoping they use that extra profit to expand their business and benefit society as a natural consequence. Thereby the answer is "trickle-down economics".

Explanation:

whose power in the senate is equal to the power of the speaker of the house?