Donald Trump has recently tweeted yet another dig at presidential predecessor Barack Obama, this time suggesting that if the 44th U.S. president had run against the 45th in the 2012 election, he would have lost.

Trump lost the popular vote in the 2016 election, while Obama won both the popular and electoral votes with both his 2008 and 2012 campaigns.

The tweet is just one of hundreds, as Trump has been loyally tweeting about Obama near-daily for well over the past five years, rarely going over two weeks without mentioning him and often tweeting about him multiple times a day. With Trump’s Twitter constantly flooding with critiques for Obama, the recent release of Michael Cohen‘s Disloyal, and the coming release of Bob Woodward‘s Rage, Trump’s obsession with Obama is becoming increasingly apparent. The books are filled with disparaging – and even racist – quotes by Trump about Obama, and in Cohen’s book, he describes how pretending to fire Obama was a kind of catharsis for Trump around the 2012 election.

Obama has never tweeted about Trump, and for the most part, avoided publicly disparaging him at all. However, at the 2020 Democratic National Convention, he spent a good portion of his speech criticizing his job as president over the past four years.

“I did hope, for the sake of our country, that Donald Trump might show some interest in taking the job seriously … But he never did. For close to four years now, he’s shown no interest in putting in the work; no interest in finding common ground; no interest in using the awesome power of his office to help anyone but himself and his friends; no interest in treating the presidency as anything but one more reality show that he can use to get the attention he craves,” the former president said at the convention, referencing Trump’s former fame as a television personality.

He went on to criticize Trump’s job at handling the COVID-19 crisis. The United States is leading industrialized countries with novel coronavirus deaths, as well as the country with the most active and total novel coronavirus cases overall.

“Donald Trump hasn’t grown into the job because he can’t,” Obama said of the president. “The consequences of that failure are severe: 170,000 Americans dead, millions of jobs gone while those at the top take in more than ever. Our worst impulses unleashed, our proud reputation around the world badly diminished and our democratic institutions threatened like never before.”

Trump live-tweeted about Obama and Kamala Harris in response, and questioned Obama’s seeming hesitation to endorse Biden.

His accusations about Obama and Harris have been disproven, and Obama’s late endorsement was evidently by Biden’s own request.