What constitutional issues May have arisen when FDR attempted to pack the Supreme Court with extra justices?

Between the world wars eisenhower's presidency the 1960s what is the organizing principle of this list?

During world war ii who is the commander-in-chief of the pacific fleet

Which statement best describes standard oil in the late 1800s? standard oil controlled only a small number of the nation’s oil refineries. standard oil was a single business that operated in a small region. standard oil controlled only the means and methods of oil production. standard oil owned ninety percent of all oil refineries in the united states.