Michael LA and Suni!
Michael Lopez-Alegria becomes the US astronaut with most spacewalks and just performed the longest US stay in space: 215 days.
Suni Williams who performed 4 spacewalks, a record for a woman, might stay up to 250 days in space, making her the US long duration flight record holder and the woman duration record holder !
It's the first time both records (spacewalks and flight duration) can be attributed to one person!
Earlier, Polyakov stayed 438 days aboard Mir, without any spacewalk and Lucid still holds the women's duration record (188 days) but also without any spacewalk.