Sen. Susan Collins (R-ME), an ardent supporter of her state’s lobster industry, on Wednesday reiterated longstanding concerns about China’s failure to live up to commitments to increase purchases of U.S. lobster – and frustration over what she said was the Office of the U.S. Trade Representative’s lack of response to her concerns. During a hearing of the Senate Appropriations Commerce, Justice, Science and related agencies subcommittee , Collins opened her questioning of USTR Katherine Tai, the only witness, by asking...