I agree, Hillary appears competent, she may also literally be mentally ill (the tell is in her cross eye movements potentially suggesting something neurological).
In all this time, the Clinton campaign has made about 2 things stick: 1) Trump is scary (he's unstable, not to be trusted with nuclear codes, he's the next Hitler and so on) and 2) he's racist.
Trump has spent a great deal of energy limiting the impact of 1) but hasn't had much success with 2). Has Trump done anything recently to reinforce that he's a loose cannon? As the black vote tends to go to democrats it's not such a big deal he hasn't turned them around. The root cause of racist claims is for something many landlords were doing back in the day and which was settled out of court with no charges laid. You may have noticed the biggest knocks on Trump have come from events 10+ years ago. People change and mature with time right? Do you think you're a nicer person now than 10 years ago?
Trump has changed his stances to be more in line with public opinion suggesting he's actually listening to the people more so than the party. The Clintons obviously want you to believe he flip flops like Mayor Quimby.
If the argument is that the difference between Trump and Clinton shows in the polls, I suggest you look closely at the polls. Trump is far too close for comfort. Judging by the perceptions of Trump, he should be well behind but he isn't. There may be some breathing space after this scandal but it may only be temporary. Trump has game, he's the top news item good or bad and he knows what he's doing.
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