>> four democratic senators today echoed the concerns, writing the white house, "epa's choice to hold coal and gas to the same emission standard is unprecedented under the clean air act." mccarthy has been praised by the environmentalist and political opponents. >> gena mccarthy has a well-established reputation for working closely with people on both sides of the aisle. >> that reputation is fraying, not only because of the redacted e-mails. march 4, two members said epa refused to make public basic scientific data underlying all the agency claim to benefit from the clean air act rules. >> we are still waiting after a year-and-a-half for her to give us that information. >> mccarthy is set to meet with senator viter. and the answer to the questions may help republicans decide how vigorously to fight the nomination. >> bret: thanks. congressional lawmakers and state attorney general are reportedly urging the director