Which branch has the most powerful checks on the other two?

The Judiciary branch.

Explanation:

The Judiciary branch is based off of checks and balances, making it the branch with the most powerful checks on the other two. :)

The judicial branch has the most powerful checks on the other two branches because it can override or veto anything the legislative and executive wants to do

Explanation:

answer; the civil right act of 1964;

answer; implicit memories explicit;