wane over time. not as much as with pfizer, but they felt it was good enough to get a third shot. >> and we'll look for news about that tomorrow. thank you, elizabeth, for the breaking news. now to the showdown between the police and the mayor. >> all city employees have to submit their vaccination status by tomorrow or risk not getting paid. but the union is digging in. >> i've made my status very clear regarding the vaccine, but i do not believe the city has the authority to mandate that to anybody, let alone the information about your medical history. it's the city's clear attempt to force officers to chicken little the sky is falling into compliance. do not fall for it. hold the line. >> the union's president warned the standoff may lead to more than half of the police force walking off the job. cnn's omar jimenez is following this story.