Former US First Lady Michelle Obama has said she is "moving towards retirement right now" and being selective with the projects she takes on.Speaking to People magazine, Mrs Obama said she and her husband were building up their foundation "so we can retire and be with each other".Since leaving the White House both have remained in political life, including campaigning for President Joe Biden.There has also been speculation Mrs Obama would herself run for office.In the new interview, she opens up about her family's experience during the pandemic - including that of their daughters, 19 and 22, moving home from university."Our girls were supposed to have emptied out of my nest," she said. "I was sort of celebrating that they were out building their lives and allowing me the emotional space to let them go. Well, they're back!"This time has allowed us to get some stolen moments back with our girls," she added, before revealing she had taken up swimming and taught herself to knit to pass time.