Step-by-step explanation:
The flaw in the reasoning is that the statement assumes that Representative Flüg Flügelson is a member of the Senate, when in fact it is possible that he is a member of the House of Representatives. Members of both the House and Senate can vote on bills being debated in Congress, but only members of the Senate vote on whether to approve the President's nominee for the Supreme Court. Therefore, the conclusion that Representative Flüg Flügelson will vote on the Supreme Court nominee based solely on the assumption that he is a member of the Senate is flawed.