Final answer:
The House of Representatives holds the sole power of impeachment against any federal officer. The Senate is responsible for conducting the trial following an impeachment. A two-thirds majority in the Senate is needed for conviction and removal from office.
Step-by-step explanation:
The House of Representatives has the sole power to initiate the impeachment process against a federal officer, which is effectively the act of bringing charges against the officer. Impeachment, as defined in the context of the U.S. government, is only the accusation of wrongdoing. Once the House votes to impeach, the trial is conducted by the Senate, with the Chief Justice of the Supreme Court presiding if the President is the one being tried. To convict the impeached individual, a two-thirds majority vote in the Senate is required, which can lead to the removal and disqualification of the individual from federal office.