FIG. 1 is a perspective view of a campaign desk showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a side elevational view, the opposite side being a mirror image thereof;
FIG. 4 is a top view thereof; and,
FIG. 5 is a perspective view in an open position thereof.
The views of the campaign desk not shown form no part of the claimed design. The broken lines depicting hardware, hinges, drawers and ornamentation shown when desk is in open position represent environmental elements only and form no part of the claimed design.