PORMAL na inendorso ng 1Sambayan si dating Bayan Muna partylist representative Neri Colmenares sa pagkasenador.
Noong isang linggo, inihayag 1Sambayan ang pitong kanditato nito sa pagkasenador kabilang sina Sen. Risa Hontiveros, Sen. Leila de Lima, dating senator Antonio “Sonny” Trillanes, human rights lawyer Chel Diokno, labor leader Sonny Matula, abogadong si Alex Lacson at dating Ifugao Gov. Teddy Baguilat Jr.
Sinimulan din ng grupo ang pagsuporta at pagsusulong sa kandidatura nina presidential aspirant Leni Robredo at ka-tandem na si Senador Francis “Kiko” Pangilinan.
“We formally announce tonight that 1Sambayan is whole-heartedly and unconditionally supporting Vice President Leni as our presidential candidate and Sen. Kiko Pangilinan as our vice-presidential candidate,” sabi ni 1Sambayan head convenor at dating Supreme Court Justice Antonio Carpio.