And he seemed like such a nice guy: Representative Tom DeLay, the majority leader rebuked by House ethics officials for pressuring a fellow member to switch his vote on a health care bill, still faces potentially more serious accusations, subjecting him to a new scrutiny that even some Republicans say could complicate his political future. Mr. DeLay, the take-no-prisoners Texan known for maintaining strict discipline in his caucus, is entangled in a series of inquiries here and in Texas regarding his fund-raising and other activities. In Texas, three of his top aides have been indicted; in Washington, the House ethics panel is deciding whether to initiate a formal investigation. On Friday, Republicans publicly rallied around their leader, though some said privately that the surprise ethics rebuke on Thursday - the second for Mr. DeLay, who was previously chastised for pressuring interest groups to hire Republicans - could hinder the leader if he tried to become speaker. Democrats, who are already making Mr. DeLay an issue in their campaigns, attacked him on Friday for what Representative Nancy Pelosi of California, the Democratic leader, called a "continued abuse of power.'' She said there was "an ethical cloud over this Capitol because of how he is conducting business here.''