A bill goes through both houses to insure that it is read, considered, argued, and that there is a consensus on the bill. This is the way a democracy works. Sometimes it is messy and may not work the first time, but one of the best way a democracy works is through compromise.
it is so that, one branch does not bypass another.
Congress DOES have the power to pass a bill into law over a Presidential veto.
The term for re-passing a bill after a veto is called "overriding" a veto. A bill which is passed by a 2/3 super majority vote in both houses of Congress following a Presidential veto is a law.
mccarthyism
The Legislative branch (Congress) can override the President's veto on a bill with a two-thirds vote from both the Senate and the House of Representatives.
After a bill passes both Houses of Congress it goes to the President for the final signature.
Two thirds of the House and two thirds of the Senate. :) Two thirds of the House and two thirds of the Senate. :)
Congress needs 2/3 majority from both the House of Representatives and the Senate in order to do that.
If Congress does not want to pass a bill that the president supports, there are several actions they can take. Congress can choose not to bring the bill to a vote, effectively killing it. They can also amend the bill to make it more acceptable to members of Congress or attach conditions to its passage. Ultimately, Congress holds the power of the purse and can choose not to fund or implement a bill even if it is signed into law by the president.
The president
When a new bill is to be passed, both the parties of the congress are made to vote. If the number of votes are high, the bill is passed.
After a bill has been vetoed it has the choice of either being brought back by a 2/3 majority vote from the senate to override the Presidents veto. Either that or the president goes and sux a dick