Why were U. S.-Soviet relations strained during the Carter presidency?

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

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

i am sure the answer is d

utilized the penal colony