Why does the US have three branches of government?
913515
the three branches of government serve as a system of checks and balances where all branches are important in developing/enforcing laws and policies that help the country to run smoothly.  It also helps to promote ethical conduct amongst politicians...pretty successful that has been
360782
The federal government is the central government of the United States.  That is the president and the congress.
136158
It is where the central(federal) government and the states share power. The three levels, are the federal government
89558
A bicameral legislative branch allows for states with a smaller population to have a more equal voice in government.  If laws were only written and passed by a representative branch then the larger states would have the most say in legislation, thus being able to force their issues to the front to the detriment of the lower population states.\n\nBy having an branch that puts all states on an equal footing, lower population states can excercise power to ensure that their needs are not trampled by the needs of larger populations.
20629
In the United States, our government is the system of power that acts on behalf of its people. The U.S. government was designed to serve the American people. Our government protects our rights and preserves our freedoms. Governments are set up to make and enforce laws. In this section, we will look at the basic types of governments in the world, yet the main emphasis will be placed on the understanding our American government system.\n\nIn the United States there are three levels of government. The federal government (national level) makes and enforces laws for our nation. The fifty state governments (state level) make and enforce laws for their respective states. Each city or town in which a person lives has a city or town government (local level) that makes and enforces laws for their community. The most powerful of the three levels is our federal (national level) government.
121212
Federal branch takes care of business, it also seems to rule over those gray areas of government.\n\nState government rules the state.
845175
the US government is separated into three branches of goverment that theoretically ensure a balance of power.  These branches are the legistislature (house & senate), exectutive (president) and the judicial (supreme court).  \n\nEach branch is designed to work independent of one another, though at the same time work with each other to create laws, implement policy and to interpret the constitution through the judicial process. \n\nA governor is similar to the executive branch, but for a state. \n\nCongressman are those who are elected to the House of Representatives and Senators are those who are elected to the Senate.  Each state is represented by 2 senators for a total of 100.  The number of representatives from each state to the House is determined by its population.  The House and Senate were both created to ensure equal representation of all states, without favoring larger states.\n\nThe House of Representatives writes legistlation (laws).  But before they are made into laws, the Senate must vote on a 51-49 majority to pass it into law and the president must sign the law to become official. \n\nHope this helps!
928579
As it happens, the question you pose happens to be the case right now.  The Republicans currently control both of those Branches (some would argue that they control all three).  In the current case, it appears that a weak legislature of the same Party as the President tends to act as rubber stamp for the Executive.  In times past,  the Congress has taken its role in the scheme of "Checks and Balances" more seriously.  Part of the answer to this question depends on your view of the performance of the party in power. Personally, I don't think things are going particularly well - you may have another view.
927263
So they can keep each other in check, and no one branch has total control. The way the US was created was to ensure true liberty for its citizens, and this is a big part of it. I wish I could go into more detail, I think it may be referred to as a "system of check and balances."
829771
The legislative branch (congress) makes the laws; the executive branch (president) enforces the laws; the judicial branch (courts) interpret the laws.
5100
The biggest pro of having checks and balances is that no one group of people can decide how the country is going to be run. There are many interconnections between the various branches of government, but for the most part, the three branches keep the other two from going awry. For instance, if the president was the sole interperter of the constiution, there would be nothing to stop him from saying that detaining people indefinately without arraigning them is constitutional, etc. With the balance of power through having the judicial branch to interpret law and the constitution, there is another level of review, which preserves our personal liberties.\n\nA possible con of the system is that certain things can take much longer than they would otherwise, though I think that it is actually a positive that it makes people stop and think about things for a bit.
857191
It is called Checks and Balances. This means that the Executive, Legislated and the Judicial Branches all check each other to ensure that one branch is not stronger than the other. Think about it if we only had one branch in government that branch would most likely abuse power.
18363
Three branches, not two. Judicial (Supreme Court), Presidential/Executive (White House), Legislative (Congress).
58119
All that stuff is because of their constitutions or whatever piece of writing they use as their basis for government. In our case, we have the U.S. Constitution. It dictates when presidents are elected and how they are elected and the length of their terms. I would imagine that all countries have something similar to that for their reasoning. Their founding fathers, or at least the one's who redrafted their constitutions, are the ones who decide what it should be.
946997
The exutive branch is one of the three main branches of the American Government. This particular branch is what the President, Vice President, etc. are in charge of. Think of the excutive branch as the maker of bills, (proposed laws). \nWhile the excutive branch proposes the bills, the Judicial branch makes sure they are indeed legal to pass (they make sure the proposed laws don't break any other laws, etc.). And the Legislative branch ensures the proposed laws are constitutional.\n\nIt's been a while since Senior Economics in high school. But I think thats the basic jist of it.
14728
The authority of the Constitution was established after it was ratified by the (I believe it had to be 7 of the 13)Thirteen States. What isn't expressly given to the Federal Government is implied to go to the states.  The 3 branches had their own powers that check and balance each other out
1108536
In the system of checks and balances, the executive branch has a check on the legislative because the President has the power to veto bills passed by Congress which then requires a two thirds vote of both houses to override the veto.\n\nThe judicial branch has a check on the legislative because the Supreme Court acts on the constitutionally of the laws passed by Congress.\n\nI hope this helps.