From what I see, it seems Republicans understand one thing - that a trump rally mob rioted at the Capitol, and Democrats are complaining.
To them, the issues are, was trump responsible for the mob doing that? Most say no. trump himself just said it was a 'protest that got out of control' like was surprised and didn't approve; and how 'bad' it was, from 'just tourists', or the Republican Party's official claim it was 'legitimate political discourse', to trump's 'protest', to Tucker Carlson's 'riot but not insurrection', or what.
So let's review a couple of main points about the actual issue they seem to show no awareness of.
In our system, basically, voters vote, and states count the votes, and certify results, and name slates of electors to meet on a certain date and officially cast the votes for the candidate who was declared to win the popular vote.
"Federal law sets the Monday after the second Wednesday in December in presidential election years as the date when electors meet."
Now, there can be confusion even about this. Electors could be people who decide on their own who should be president and vote. Electors could vote differently, like some for trump and some for Biden. But this isn't how it's done in modern times.
Here's a key point in how it works that trump tried to exploit: the constitution gives state governments the power to choose who to support for president how they want, with minimal restrictions. The state legislature COULD simply have the legislature vote for who they support and not even have popular elections. People think the constitution guarantees them the right to vote who is president - it doesn't. But states have adopted the practice of popular elections. Normally that's not controversial.
So, why if a state votes 60-40 for Biden, don't they send 60% electors for Biden and 40% for trump? Because states feel that a 'winner take all' system makes their votes carry more weight, and makes candidates try harder to get their votes. If going from 45% to 55% got you 10% more votes, why bother, but if it changed all the votes, they care more.
That's just a basic 'how it works' in case people didn't know. And after the electors vote in December, there is a ceremonial counting of the votes the constitution orders on January 6 at 1:00 PM. It's done in a joint session presided over by the President of the Senate, who is the Vice-President. This can result in the Vice-President declaring their opponent the victor, as it did for Pence and Gore.
It might be a minor news clip showing video of Gore announcing Bush and Cheney the victors, all the more poignant when they stole the election, but it's not usually controversial.
However, trump had creative lawyers come up with ideas for exploiting weaknesses in the system, and they identified two options. Both included exploiting the ceremonial process of the Vice-President announcing the count of the votes, having him do that dishonestly.