In the United States, the power to impeach a president rests with the House of Representatives. This constitutional mechanism allows the House to bring charges against the president for "high crimes and misdemeanors." If a majority of House members vote for impeachment, the case then moves to the Senate for trial. A two-thirds majority in the Senate is required for a conviction, which can lead to removal from office. This process serves as a crucial check and balance to ensure accountability in the executive branch.