¿Por qué a los militares argentinos les preocupó la reunión de Frondizi con el Che Guevara?

The national security act of 1947 reflected:

In presidential elections if no candidate receives a majority of the election votes, a. the winner is decided by the house of representative’s. b. the current president remains in office for four more years. c. the winner is decided by the senate. d. a runoff election is held in december between the two candidates who received the most votes in the general election.

How does the power of the supreme court act as a check on the other branches of government