Ethics Panel Advancing Inquiry Into Illinois Republican WASHINGTON - The House Ethics Committee announced Friday that it was pushing ahead with an investigation into Representative Peter Roskam of Illinois, a member of the House Republican leadership, and that it was pursuing inquiries into three other lawmakers, including Michele Bachmann. Timothy H. Bishop, Democrat of New York, and John F. Tierney, Democrat of Massachusetts, are also being investigated, the committee said. The accusation against Mr. Roskam involves a trip to Taiwan with his wife in 2011 that the Office of Congressional Ethics - which asked for the full Ethics Committee investigation - said was improperly financed by the Taiwanese government, according to Politico, which first reported the details. Mr. Roskam's spokeswoman, Stephanie Kittredge, said the congressman "fully complied with all laws, rules and procedures related" to the Taiwan trip. It "was vetted and approved by the House Ethics Committee," she said, adding that "the O.C.E. is wrong to take issue with the involvement of the government of Taiwan in planning and conducting the trip, a matter that is routine, allowed under the law and was known to the House Ethics Committee." In March, Mrs. Bachmann's lawyer confirmed that the Congressional ethics office, a nonpartisan and semi-independent group, was investigating her over accusations that she misused money from her presidential campaign last year. The office referred the inquiry to the House Ethics Committee last month. Mrs. Bachmann, Republican of Minnesota, who announced in May that she would not seek re-election next year, is facing a number of investigations, including inquiries by the Federal Bureau of Investigation and the Federal Election Commission. Her lawyer, William McGinley, said in a statement on Friday that the House Ethics Committee would clear Mrs. Bachmann. The investigation, he said, "does not speak to the merits of this matter, and any inference to the contrary is false." "We are confident the committee will discover, upon proper review, that the highly politicized allegations made at the O.C.E. level were baseless and without merit," he added.