WASHINGTON, July 12 -- Sen. Tammy Baldwin, D-Wisconsin, issued the following news release: WISCONSIN U.S. Senators Tammy Baldwin (D-WI) and Ron Johnson (R-WI) both returned their blue slips to the Senate Judiciary Committee, giving their formal stamp of approval on their pick for the U.S. District Court for the Eastern District of Wisconsin, Byron Conway. Both Senators from the state of the nominee must return their blue slips in order for federal judicial nominees for district courts to move f  more