Mr. Aliferis is a government affairs advisor in the firm's Washington, D.C., office. He focuses on federal funding issues as well as policy matters involving energy, transportation, the environment and telecommunications.

Prior to joining K&L Gates, Mr. Aliferis served as director of government affairs for the Alliance of Automobile Manufacturers, where he analyzed and monitored energy, environmental, and tax issues affecting the automobile industry. In this capacity, he was directly responsible for developing strategic options, legislative proposals, and media correspondence. Mr. Aliferis drafted congressional testimony for both the House and Senate committees, and served in an advisory role to member companies on relevant legislation. He also acted as a liaison with congressional offices to explain and advance industry positions, and coordinated activities with the House and Senate Auto Caucus.

Mr. Aliferis has an extensive legislative background, serving for nine years under Congressman Fred Upton, former Chairman of the House Energy and Commerce committee. As the legislative director and principal policy advisor in the office, Mr. Aliferis was responsible for the development and oversight of Congressman Upton's legislative agenda in the House of Representatives. He handled telecommunications and media issues under consideration by the House Energy and Commerce committee including the 1992 Cable Act and the 1996 Telecommunications Act. He drafted legislation and amendments on environmental, transportation and budget issues, and coordinated message development with the congressman's chief of staff and district director. Mr. Aliferis also organized outreach efforts to business and community groups.

Mr. Aliferis also served as a congressional intern to Congressman Robert Davis and an assistant to the director of public affairs for the Philadelphia Chamber of Commerce.

Tim Peckinpaugh's practice focuses on energy, environmental, and natural resource legislative and funding issues.

Mr. Peckinpaugh has represented clients for over thirty years in all aspects of energy policy, including nuclear (fission and fusion), hydroelectric, coal, oil and natural gas, electricity, as well as a variety of clean technology and energy efficiency issues. He also represents major international corporations and local communities on Department of Energy nuclear waste cleanup, nuclear security, and contracting issues. In addition, Mr. Peckinpaugh represents regional chambers of commerce and companies from the Pacific Northwest on appropriations, grant funding, energy, technology, natural resource, trade, agriculture, workforce, and economic development opportunities.

Mr. Peckinpaugh provides assistance on appropriations and legislative drafting, and counsels many of the firm's clients on campaign finance, lobbying, and governmental ethical issues. Finally, he is a previous chair of the firm's public policy group and currently manages the K&L Gates Political Action Committee, one of the largest law firm PACs in the country.

Mr. Peckinpaugh came to the firm in 1985 from Capitol Hill, where he had five year's experience as a professional staff aide to the House Science Committee, former U.S. Congressman Sid Morrison (R–WA), and the Republican Study Committee. While on the Hill, he focused on energy, natural resource, science, technology, and defense issues.

Cliff Rothenstein has more than 30 years of congressional and federal executive experience. Prior to joining K&L Gates, he served as Director of Legislative Affairs for the Federal Highway Administration (FHWA). In this capacity, Mr. Rothenstein worked on a daily basis with the FHWA Administrator, Deputy Administrator, and Deputy Secretary of the U.S. Department of Transportation (DOT). During Mr. Rothenstein's tenure at FHWA, he led the development and advocacy efforts on legislation to reauthorize the nation's surface transportation law where he played a significant role in developing and recommending to the FHWA Administrator and to other DOT executives proposed changes to the law to streamline project delivery and expand investments in highways, bridges, and multimodal transportation projects. Mr. Rothenstein also coordinated FHWA's discretionary grant programs that fund highway and bridge improvement projects and managed FHWA's relationships with Congress on highway-specific projects and issues. In addition to his tenure at FHWA, Mr. Rothenstein served as a senior advisor on the Senate Environment and Public Works Committee which has jurisdiction over environment and surface transportation issues. He led the Committees efforts on the reauthorization of Superfund, the Resource Conservation and Recovery Act, and the Clean Water and Safe Drinking Water Acts. Mr. Rothenstein also served for 20 years at the Environmental Protection Agency (EPA), including as the Deputy Assistant Administrator and Director of the Office of Underground Storage Tanks. He has represented clients at the intersection of environmental, energy, transportation, and infrastructure policy and regulation, including advising clients on Superfund, the Clean and Safe Drinking Water Acts, the Water Resources Development Act, and the Clean Air and Resource Conservation and Recovery Acts; National Environmental Policy Act strategies for major transportation and energy infrastructure projects; funding opportunities including TIGER grant funding; and issues related to tolling of interstates.

Distinguished Alumni Award, American University, Washington College of Law, 2014
Department of Commerce Bronze Medal (2004), Silver Medal (1997), and General Counsel (1995) awards

Board of Directors, Trade Policy Forum, 2010 to present; Vice President, 2016 to present
Member, Women in International Trade
Member, Washington International Trade Association

Prior to joining K&L Gates, Ms. Ettinger served as a senior legal and policy advisor to Senator Charles Schumer, including as Chief Counsel of the United States Senate Committee on Rules and Administration, and as Deputy Staff Director of the Joint Economic Committee.

Prior to joining the Senator's legislative team, she served as a senior legal advisor at the U.S. Department of Commerce. Ms. Ettinger advised agency officials on the interpretation and application of U.S. and foreign trade rules, supervised dispute settlement proceedings before the World Trade Organization, and represented the United States in international trade negotiations.