A shot in the arm for vaccination efforts, a rideshare setback and a retail roundup

The FDA has finally approved Pfizer’s Covid-19 vaccine, and fresh vax mandates are already pouring in. How might this shape the path of the pandemic? We’ll explore. Plus, a California judge just ruled that Prop 22 is unconstitutional -- a big blow for rideshare firms like Uber. But we’ll talk to an analyst who says the stock is still a top pick. And, in today’s retail-themed Rapid Fire: high hopes for Gap earnings, why Peloton looks out of shape, and how to play the ‘ugly shoe’ trend.