Acting Director of National Intelligence Richard Grenell got snarky with House Intelligence Committee Chairman Adam Schiff after the California Democrat sent him a pointed letter raising concerns about a shake-up of the spy community.

Grenell, who is concurrently serving as U.S. ambassador to Germany and is widely seen as a loyalist to President Trump, appeared to not take kindly to Schiff’s insinuation that he was engaged in the “politicization” of intelligence.