In a note sent to NPR staff Monday and posted on the network's website, Norris says her husband's new role could make it difficult to continue hosting the show. She says she is temporarily stepping away until after the 2012 elections.
Norris's husband, Broderick Johnson, is a senior adviser to the Obama campaign.
Norris says she will recuse herself from all election coverage but will continue reporting for NPR on other subjects. She steps down as host at the end of the week.
"All Things Considered" is also hosted by Robert Siegel and Melissa Block.