The Obama administration must insist that U.S. trading partners pledge not to manipulate currencies when negotiating trade deals, the chairman of the Senate Committee on Finance said. Addressing currency concerns was key to winning lawmakers' support for a bill to fast-track trade agreements through Congress, and deals such as the Trans-Pacific Partnership, committee Chairman Orrin Hatch told the American Enterprise Institute. "Pretending these concerns don't exist will not suffice," he said.    "The administration must engage much more effectively with Congress on this issue if they want to receive strong support for TPA (trade promotion authority) and any subsequent trade agreements." U.S. Trade Representative Michael Froman said on Tuesday Treasury had the lead on currency issues. Hatch said he expected that the fundamentals of a TPA bill to be introduced soon would be "substantially the same" as legislation drafted last year, which never progressed to a vote. The bill allows lawmakers to set negotiating objectives for trade deals in exchange for a yes-or-no vote on the final deal, without amendments. Hatch said he would not support any trade deals which did not include strong intellectual property protections. Other conditions included investor-state dispute settlement provisions; no barriers to digital trade, and the elimination of tariffs on U.S. exports of goods, services and agricultural products. Japan and Canada had to accept more U.S. farm exports, he said. "Let me be clear: If Japan, Canada and our other TPP partners are not willing to open their markets to our exports, the final agreement will never receive support in Congress," Hatch said. (Reuters)