<span>A president doesn't need a large margin of victory to lead well. Often with contentious elections, a president can still form an effective coalition, especially if his or her party is in power in the house and senate. While the people may be split, a majority of the legislation can be promoted and passed leading to an effective presidency.</span>
Impeachment is a long process and lots of times doesn't work in time. This happened with Bill Clinton. He was on trial to be impeached but finished his term before he could be removed from office.
Explanation: it’s “ a system that allows each branch of a government to amend or veto acts of another branch so as to prevent any one branch from exerting too much power”
