The argument that the government should not regulate business interests is an example of conservative ideology. liberal ideology. moderate ideology. social conservativism. left-leaning socialism.

I believe it's the example of conservative ideology.
conservative ideology tend to believe the power of the free market. According to this ideology, the Government interventions only reated imbalance in the market competitions, which only drives profit to the people who are not supposed to win the competition.

The president of the united states does not have the authority to “limit” the power of the judicial branch. however, the president can influence the political direction of decisions made by justices on the supreme court through the nomination process when a position becomes available.i would say the best answer is that he can at least interpret the laws