She's up on the 8th floor. But, to get to her office, you basically enter an annex that looks like it's still under construction. Then, you go down a long corridor with empty offices & conference rooms. At the end of this corridor is an easel with a 3'x5' sign announcing that you have found Sen. McCaskill's office. You open the door to the right, and you're in a stairwell. Then, you open the door to the left, & you're in her office. But the staff are all seated at desks in an open office with a few suites off to the side.