Five things you need to know today, and when all the numbers add up

Good morning, Boston, and happy Twosday. Here are the five things you need to know on National Margarita Day. High-end shops, low foot traffic Data on customer foot traffic shows what many have already suspected: Upscale shopping centers in the city are suffering more than their suburban counterparts, Grant Welker reports. Pot primary invite Two co-founders of a cannabis retailer have invited the candidates for governor to their Dracut shop for a "cannabis primary," State House News Service…