Odd that you don’t tell us the name of that poll, date, who was polled and where.
As I said - graph is reuters over time. On the right side the date rotates to show past results. I mistakenly grabbed it just as it had rotated back to Feb (my bad oops,) but graph is now (and past)
No intent to mislead, I assumed I had grabbed enough to display who and what it was, so point taken but it wasn’t intentional.