What vote of the House of Representatives is needed to impeach an official, that is, to affirm a favourable resolution with the Articles of Impeachment?
Correct answer: C. At least one-third of all its Members
Article XI, Section 3(3) requires a vote of at least one-third of all the Members of the House to affirm a favourable resolution or to override a contrary one. Conviction in the Senate needs a much higher vote: two-thirds of all senators.