I quoted the following paragraphs from The Guardian
Trump indicated last week that he would fire Sessions after the midterm elections, a move some observers said might presage the firing of deputy attorney general Rod Rosenstein and the special counsel, Robert Mueller, whose work on links between Trump aides and Moscow has circled ever closer to Trump’s inner sanctum.
Some senior Republicans have indicated they would accept a move against Sessions, which would echo the infamous “Saturday night massacre” carried out by Richard Nixon against top law enforcement officials during his downfall in 1973. Some have said they would not.
What does "a move" mean? Does it refer that Trump fired Sessions so that Sessions had to move his position?