Much as it might be pandering to Trump's nationalist (America first / American only) policies, or simply an action to avoid some of the effects of tariffs that might be imposed, this time around, I see no such connection for the 2021 announcement. Unless they are connected as they are a more generic "pleasing the incoming administration" to try curry favour for when decisions that might affect the company are being made.
Setting specific parties and people aside, that’s not what “the base” means. The base is the diehard supporters. Many an election has been won by taking a minority base and adding in people who are not supporters but chose that candidate for whatever specific reason, e.g. “the price of gas.”
He won with fewer votes than Biden got to win in 2020. And not all of those are his 'base'. Many probably didn't even know who Biden is, they just voted for the guy promising to lower prices.
