Sean Spicer Says Sarah Sanders Will Survive in a Divided America

Sean Spicer has ZERO doubt his successor, Sarah Huckabee Sanders, will land on her feet just fine after she leaves The White House ... and maybe one day end up on a ballot somewhere.

President Trump's first Press Secretary tells TMZ ... Sarah, who replaced Sean in July 2017, won't find the world out there as scary as many might think. In fact, Sean's adamant Sarah has a throng of supporters even in this political climate.

Check out the clip ... Sean, who wrote a book after leaving his post, says public service is in Sarah's DNA. But, Sarah -- just like Sean -- had a rough going as Trump's mouthpiece during her 2-year run. She'll leave at the end of the month and said she hopes she'll be remembered for her transparency and honesty.

That's ironic, because -- according to the Mueller Report -- she was forced under oath to admit she made up nonsense. The Special Counsel said Sarah straight-up lied when she said she heard from "countless members of the FBI" supporting Trump's removal of James Comey.

As for Sanders running for public office, Spicer says bank on it ... echoing President Trump, who encouraged her to run for Governor in Arkansas, her home state.