The Regional Transportation District swore in seven new Board directors and one incumbent Tuesday during a special Board of Directors meeting. Among those sworn in was Karen Benker, a staunch proponent of a new commuter rail line from Denver to Boulder, who will represent portions of Thornton and unincorporated Adams County.Benker, who served on the RTD Board from 1992 through 2000, was also elected to the Board’s executive committee for 2025.Tr…