White House defends Melania Trump's public silence on president's tweet mocking Greta Thunberg

The White House is pushing back against claims that First Lady Melania Trump is being hypocritical for criticizing attacks on her teenage son Barron, but not her husband's attack on 16-year-old Greta Thunberg

White House Press Secretary Stephanie Grisham said Friday that Barron was in a different category from Thunberg because she's a climate activist "who travels the world giving speeches."

Grisham's statement came one day after President Trump attacked TIME Magazine's decision to dub Thunberg "Person of the Year."

"So ridiculous," Trump tweeted. "Greta must work on her Anger...