5 things to know for Feb. 25: State of the Union, Americans in Mexico, Immigration, Childhood vaccines, Nancy Guthrie

CNN By Alexandra Banner, CNN Some Democrats staged a quiet protest at the State of the Union by wearing white buttons — a subtle yet coordinated effort that didn’t go unnoticed. CNN spoke with Rep. Nancy Pelosi, who explained the meaning behind the symbol. Here’s what else you need to know to get up to