There are light years of space between the behavior we're seeing now and "a president working to roll back his own power," and even that has arguably happened i

There are light years of space between the behavior we're seeing now and "a president working to roll back his own power," and even that has arguably happened in many presidencies, depending on what you mean. You would need much more than that to demonstrate anything approaching behavioral parity on this dimension. Otherwise - yes, politicians from every party, forever, everywhere, exhibit some similar faults.