Just like Lisa continues to "monitor the situation" at Pebble Mine, has to "follow the process" that's dragged on for 15 years despite the outcry of 85% or more of Alaskans against that particular mine in that particular place. So can't take a position, has to let 'the process' play out. 

She doesn't deserve to take over Ted Stevens office. Like him or hate him, you always knew where you stood with Ted - and he was one of the first to take a stance on Pebble. Wrong Mine, Wrong Place.