There’s a longstanding tradition in this country that former presidents exercise the courtesy to refrain from publicly taking jabs at their successors. Presidents have stuck to this tradition for hundreds of years, which is why it has been so disappointing that Barack Obama has repeatedly thrown it out the window since moving out of the White House, instead choosing to make subtle criticisms of Donald Trump whenever he can.

On Monday morning, Obama took to Twitter to celebrate Presidents Day by taking a subtle jab at Trump, taking credit for the economic strides that have been made in the past few years.

“Eleven years ago today, near the bottom of the worst recession in generations, I signed the Recovery Act, paving the way for more than a decade of economic growth and the longest streak of job creation in American history,” Obama tweeted alongside a photo of his signature on the 2009 stimulus package.

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This is an obvious jab at Trump, who has been saying that he alone deserves credit for the economic success our country has been having as of late. In fact, this economic boost is one of the staples of Trump’s reelection campaign, so Obama undoubtedly knew he was pushing the current president’s buttons when he tried to take credit for this success.

The economy has indeed been flourishing under Trump, with unemployment at a 50-year low and minorities especially getting more jobs than ever before. The Trump economy is so good that Democrats have resorted to claiming that it was Obama who began these economic gains, and Trump just continued them. But anyone who lived through the former president’s time in the White House can remember that the economy was the last thing that he cared about.

Obama’s tweet about the economy today was both misleading and immature. He can try to tarnish Trump’s legacy all he wants, but none of us are buying what Obama has to say. In the end, Obama might be starting to realize that his worst fear is coming true: that Trump is a far better president than he ever was.