Last month, Mike Bloomberg had an announcement to make: after months of teasing a possible bid for the presidency, he’d decided he would not run in 2020, having come to the conclusion that while he could totally beat Donald Trump in a general election, his chances of winning a crowded Democratic primary were considerably worse. In addition to being unwilling to shift his views further to the left to compete with candidates like Elizabeth Warren and Bernie Sanders, the three-term New York City mayor was reportedly unconvinced he could compete with Joe Biden for centrist voters when the former V.P. inevitably entered the race. Instead, Bloomberg decided, he’d use his time and truckloads of money to thwart Trump in other, less humiliating ways. But according to a new report from Axios’s Mike Allen, events of the last few days have him maybe possibly potentially rethinking things:

Bloomberg might still run for president in 2020, especially if former Vice President Joe Biden winds up not getting in, according to people who have discussed the matter with the former New York mayor. These people tell me that Bloomberg, 77, who announced March 5 that he wouldn’t run, might reconsider if a centrist lane were to open up. The most likely scenario for that would be if Biden, 76, whose displays of public affection have burst into a major issue, were to stay out or fade fast.

The people who have talked to Bloomberg caution that if he were to revisit the decision, he might well wind up in the same place. But we’re told Biden’s presumed candidacy was a fairly significant factor in Bloomberg’s decision, after massive spending on data and polling.

Of course, none of this means Bloomberg is about to plunge into the race feetfirst. For one thing, teasing a run for months before making a lengthy statement about why you decided not to go through with it, only to say “just kidding! I’m in!” feels like an amateur-hour move that Bloomberg would likely deem beneath him. For another, Bloomberg has considered running in many presidential elections, but has never actually followed through.