Buttigieg would be the first LGBTQ Cabinet Secretary certified by the Senate if nominated through the Chamber.
The choice is in the basement of a candidate Biden spoke flamboyantly after the Democratic primaries in the next administration, and Buttigieg could gain what many Democrats believe he needs experience if he runs again.
The transportation secretary is expected to play a central role in Biden pushing for a bipartisan infrastructure package.
Buttigieg is seen as a rising star in the Democratic Party but someone who lacks a clear path to an elected higher office amid the ongoing shift to the right in his home state of Indiana.
Other Democrats are also being considered, including former Chicago Mayor Ram Emanuel, Los Angeles Mayor Eric Garsty and Rhode Island Governor Gina Raymondo.
After ending his presidential campaign earlier in the year, Buttigieg supported Biden and spent much of the general election fundraising and events for the former vice president.
Joe Biden said at the time: “I know this might not mean much to most people, but to me it is the highest compliment I can give to any man or woman.”
Prior to running for the presidency, Bottegg had served as mayor of South Bend since 2012. He did not seek re-election in 2019.
During his tenure as mayor, Buttigieg was deployed in 2014 as an intelligence officer in Afghanistan.
Prior to running for the position, Bottegaage was a consultant at McKinsey & Company in Chicago.
This story is disabled and will be updated.
CNN’s Kate Sullivan contributed to this report.