The credenza was not moved — you can see the corner of it in the photo.
You are accusing the photographer of some nefarious intent to EXCLUDE the flag for political reasons. This is ridiculously oversensitive and sounds like the lefty snowflakes. Especially since we don’ know who made the photo, but my guess is that it was the White House photographer. I have toured the White House press office corridor and have seen dozens of his wonderful photos, all supportive of President Trump.
Having directed numerous photo shoots myself over the years, I can tell you that the photographer probably shot from many angles and had the President pose this way and that—then showed Trump a selection of many of the shots from which Trump could make his choice. The photographer didn’t rearrange Trump’s office layout for the photo, but moved around this way and that as he made his shots.
No American flag