What is the primary source of uncertainty over the limits on presidential power?

All native american time were united against their struggle with the european settlers true or false

General rochambeau general washington by

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.