Of course they can. Obama can also apparently stop legitimately approved oil pipeline products.
The question is what is the correct conservative thing to do, not what you “can” do.
A system that offers certain companies tax benefits based on their political connections or political value is the heart of “crony capitalism”, something Sarah Palin has spoken strongly against. Markets work best when there is a level playing field, where you make money based on the free exchange of goods and services, not by threatening to move jobs to Mexico, or giving money to the right politicians.
The “you” in this case is Mike Pence. He is the guv of Indiana.
Trump is not even in office. Trump’s contribution is the promise of much, much lower Federal taxes and much lower regulation costs.
And FWIW, I don’t really care what Palin has to say about economics, though I do give her much credit for recognizing the value of Trump early on