Thiel supports freedom and supports candidates that do. Vance worked for Thiel. Blake Masters is running for the senate in AZ and also works for for Thiel now. I bet he will also get Trump's endorsement before the primary in Aug.
if anyone believes Theil did all of this out of the goodness of his heart, there's a bridge for you to buy.
I don't think anyone does believe that. But it seems Vance really, really wants to be a senator, so he's come round to Thiel's view on Trumpty, which is that he's wonderful.