Right now, the 2021 Boston mayor’s race has one (1) official candidate: at-large city councilor Michelle Wu, who made things official last week after months of speculation — and after the incumbent, Marty Walsh, gave her campaign an unconventional “soft launch” of his own. So how does Wu stack up against Walsh (if he runs) — and her fellow city councilor Andrea Campbell (ditto)? And what are the big takeaways from a new GBH News / MassINC poll on the state of the race and the issues on Boston voters’ minds? Peter Kadzis, Adam Reilly, and Saraya Wintersmith talk it through.