These "alternate" electoral college votes Miller promised have indeed been taking place today.
In Georgia, for instance, some Republicans met and cast "electoral votes" for Trump, even though Biden won the state.
The problem is that they don't actually have valid votes to cast, because they're not actual electors.
The real ones, whose votes actually count, were appointed based on the legal, certified results in each state.
"Don't be distracted by these preposterous mock electoral votes. They don't change how anything is going to unfold since congressional Republicans could've objected without them," says law professor Steve Vladeck.
'Alternative' electors denied entry in Michigan
Michigan was a state Joe Biden won by about 155,000 votes, but Donald Trump maintains he actually won.
Michigan held its real electoral college vote at the state Capitol, which was shut to the public due to security concerns.
But Republican "alternative" electors showed up a short time ago and requested entry to the building. The police stopped them, saying the actual electors had already signed in.
This footage comes from Detroit News reporter Riley Beggin.
Pennsylvania Republicans justify 'alternative' vote
The Pennsylvania Republican Party has released a statement on its "alternative" electoral college vote.
"At the request of the Trump campaign, the Republican presidential electors met today in Harrisburg to cast a conditional vote for Donald Trump," it says.
"We took this procedural vote to preserve any legal claims that may be presented going forward," the Trump campaign's Pennsylvania chair, Bernie Comfort, added.
"This was in no way an effort to usurp or contest the will of the Pennsylvania voters."
Reuters' crime and justice reporter Brad Heath points out the Trump campaign doesn't have any remaining legal claims in Pennsylvania and there are no signs that any new ones are forthcoming.
The campaign's biggest lawsuit in the state, which Rudy Giuliani argued in court himself, got rejected by a panel of conservative judges from the Third District Court of Appeals late last month.
Giuliani and his colleague Jenna Ellis both indicated they would appeal the decision to the US Supreme Court, but it has been more than two weeks now and they still haven't got around to it.
What happens next
Once today's electoral college vote is finished there are two basic steps left in the process.
First, on January 6, Congress will formally count the electoral votes that have been cast today.
That will give Republican politicians a chance to object, but as Democrats control a majority in the House of Representatives, there ultimately isn't much they can do beyond making some noise.
Miller's hope is that today's "alternate" electoral votes will give congressional Republicans something to talk about.
Prof Vladeck's point is there was nothing stopping them from raising objections anyway. So, the whole thing seems rather pointless.
After Congress counts the votes, on January 20, Biden's inauguration will take place and he will become the new president.
