It the time of the Founders, the Supreme Court had little actual power, which President Andrew Jackson demonstrated to the Supremes when they issued Worcester v. Georgia (1832)
In that decision, the Supremes held that Georgia had no right to evict the Cherokees from their land in Georgia. President Jackson then issued his famous response: "[Chief Justice] Marshall has made his decision -- now let him enforce it". The Indians were moved in defiance of the Supremes
The reason Jackson could do this is that he had the ability to immediately fire any executive branch employee who did not do as he was told by Jackson. This meant that in a conflict between Jackson and the Supremes, Jackson won -- the Supremes did not command any bayonets. The Civil Service acts later changed this balance of power in favor of the courts.
That Supreme Court decision held that