CNN contributor and prominent anti-Trumper Ana Navarro mocked First Lady Melania Trump Monday by quipping that she has suffered “oxygen deprivation to the brain.”

Navarro apparently interrupted her own vacation to hurl insults at President Donald Trump’s wife.

“On vacay & I swore I’d stay off political twitter,” she wrote, “But damn, girlfriend’s lack of self-awareness & any sense of shame for her husband’s use of the Presidency to bully others, is hard to ignore.” The outburst came in response to a video clip of First Lady Trump delivering an anti-cyber bullying speech on Monday.