Trump is, the wheels are already falling off - it's 1973 all over again, if you're too young to remember as I am, just study a little modern history. Whether the rest of us are as well depends on how busy he is before he's impeached. He still has the nuclear launch codes in his clutches, and might decide that this isn't fun anymore and go out with a bang - literally.
Given that Trump fired Sally Yates, it's actually worse. Nixon didn't fire the AG, Richardson resigned. If Comey was incompetent he should have been fired in January - NOT when the Bureau was investigating Trump. He's on record as asking Comey to drop the investigation on Flynn and fired him when he refused - that's obstruction, pure and simple. It's what sunk Tricky Dick.
I am not an American, but some of my American friends think that Trump is much better than Hillary or Obama. It seems to be difficult to be objective and reasonable about politics.