Several Democrats in the U.S. House of Representatives are pushing, during private discussions, to formally expel Representative Haley Stevens from their caucus after she announced her support for Republican candidate Mike Rogers against her party's candidate, Abdul Syed, in the Michigan Senate race, according to three people familiar with the discussions who spoke to CNN. The participants in the discussions stated that Stevens violated a basic rule in the bloc's statutes, which prohibits its members from "participating in electoral activities for the benefit of any candidate who does not belong to the Democratic Party in partisan federal elections." The system allows any member to be removed from the bloc with the approval of two thirds of its members. It remains unclear whether Stevens will be removed when Democrats meet again next week. The decision will likely depend on the outcome of the Michigan Senate race, people familiar with the matter said. The decision may also depend on the extent to which Democrats need her voice in the House, where the number of seats for both parties is close, during the transition period to Congress, or if she decides to return to the House of Representatives during the final weeks of her term.