The president of the United States is the head of the executive branch.
Presidential powers explicitly listed in the U.S. Constitution include: Being able to veto, or reject, a proposal for a law, appoint federal posts, such as members of government agencies, negotiate foreign treaties with other countries, appoint federal judges, grant pardons, or forgiveness, for a crime.
The executive branch has used the power of veto 2574 times. Presidents are responsible for veto. (ex: Barack Obama, George Bush, Abraham Lincoln... etc)
i think this branch is the most powerful one because it has all the pow and it . can do anything alos the presedents are in it it all about the presiteds .they also have powers include being able to veto, or reject, a proposal for a law, appoint federal posts, such as members of government agencies, negotiate foreign treaties with other countries, appoint federal judges, and grant pardons, or forgiveness,