When an investigation is launched by either committee, an investigatory subcommittee will be formed. Once the investigatory subcommittee has collected evidence, talked to witnesses, and held an adjudicatory hearing it will vote on whether the Member is found to have committed the specific actions and then will vote on recommendations. If expulsion is the recommendation then the subcommittee 's report will be referred to the full House of Representatives or Senate where Members may vote to accept, reject, or alter the report 's recommendation. Voting to expel requires the concurrence of two - thirds of the members present and voting.
how many votes does it take to expel a member of congress
two - thirds of the members present and voting