Gore lost by a few hundred votes. It had nothing to do with Clinton’s Impeachment It is not normal for a 2 term President to be succeeded by a member of his own party.
Bush I beat the norm because he was riding the coattails of a hugely popular Ronald Reagan. Gore did better then he should of mainly due to the last second DUI hysterics in the US Fake Media against Bush going into election day.
A few hundred votes could have been moved by almost anything; I don’t know on what authority you are so absolute in your conviction that the impeachment played no role.
I’ve simply stated that credible arguments have been made that the impeachment cost Gore the election, and I think most people would agree that while we may never know the full impact of the impeachment, the arguments for its effect are quite credible.
https://www.theatlantic.com/politics/archive/2019/06/did-clintons-impeachment-actually-hurt-republicans/591175/
https://www.uvm.edu/%7Edguber/POLS125/articles/pomper.htm
Excerpt: The vote showed significant shifts from 1996 (see Figure 3), working to Bush's advantage. There was more party switching by former Clinton supporters than by former Dole supporters, and previous backers of Perot also moved more heavily toward the Republicans.
The Clinton scandal probably had some effect on these patterns, giving more prominence to character traits and providing more reason for party switching. Although most of the country gave little weight to the Lewinsky affair, a fourth did find it "very important."