Certainly could be a possibility. I would not put it passed an inattentive staffer. Yet where is is Trump's strong condemnation of the tweet and of white power? Why must the sole black republican senator speak out for him to take it down? What I see is an intentional dog whistle to a certain segment of his base. He knows that he is not going to win any black support against Biden so his best chance will be to fire up more support from certain white voters instead.
Regardless, can we all just forget the whataboutism that runs rampant in politics today? Enough of the "Biden said this" or "Trump said that" garbage when faced with abhorrent behavior from anyone. I will be the first to hold anyone to account for their words and actions. I expect others to do the same. You may decide that you will still vote for Trump for whatever reason, and that is your prerogative, but do not let him forget that his supporters will still hold him to a high standard if he is to earn their votes. We are all to eager to give a free pass to our own side.
On a side note, it seems that I do not have a place left in this world. Gone are they days when gentleman could hold civil discussion of policy without name calling. If we are to have any hope of survival as a nation, we must resist every attempt to divide us, to make our neighbors the enemy. People were not "alt-right fascists" or "leftist marxists" or whatever other name you want to use. We were all Americans. We may hold differing views in how we want to solve the problems facing the nation, but we recognize the humanity in one other. When faced with uncomfortable realities, we all too often retreat into our respective camps. Right vs Left. If we could just sit down and talk, forget the political labels, we would see that we are all so alike in what we want for this nation. I have tried to do my part on here to approach every discussion with civility, to avoid name-calling, and to appeal to reason, and I appreciate that many have done the same. Still, that is not the trend in political discourse. Ultimately, a man must have a guiding set of principles and vote his conscience.