Tech mogul Peter Thiel has joined President-elect Donald Trump’s transition team, the campaign said in a release Friday.

Two sources told Bloomberg that the PayPal co-founder’s responsibilities will include vetting presidential appointments and helping to decide which campaign proposals Trump should prioritize.

Thiel was an outspoken supporter of Trump throughout the campaign and spoke on his behalf at the Republican National Convention in July.

On Friday, the Trump campaign released the full lineup of his reshaped transition team, led by Vice President-elect Mike Pence.