Newly announced Saturday Night Live cast member Melissa Villaseñor — the first Latina cast member in the show’s four-decade history — has come under fire for apparently deleting thousands of tweets from her social media account that critics have deemed racist. The tweets from the 28-year-old Mexican-American comedian — who joined the cast of NBC’s long-running sketch show earlier this month — were first noticed by Grist writer Aura Bogado, who pointed them out on Twitter.