"Happy 90th Birthday to an all-American icon, Willie Mays," the tweet reads. "A trailblazing, record-breaking baseball player, civil rights leader, and champion for youth sports and well-being, Willie Mays is a civic legend and national treasure. #SayHey90."
It's not the first time a high-profile politician has made an error like this one.
When civil rights icon and Georgia Rep. John Lewis died last year, Florida Sen. Marco Rubio (or someone on his staff) posted a picture of himself with also-deceased Rep. Elijah Cummings instead and was criticized harshly.
Pelosi did not receive anywhere near as much blowback, and her office later blamed a staffer for the gaffe.