The former Los Angeles Laker and HIV activist visited the White House Thursday. Johnson, 54, tweeted later that day:

Johnson also promoted Obama’s healthcare coverage plan to his more than 1.6 million followers with another Twitter post. That prompted @BarackObama, the account run by Organizing for Action, the political advocacy group born from Obama’s reelection campaign, to respond:

POTUS has been giving plenty of Twitter love to celebs who voice support ObamaCare. Earlier this week Organzing for Action retweeted a message from pop singer Katy Perry.