While some people spent the weekend loving on their mothers, President Donald Trump and his Twitter fingers had other plans. Trump used Mother's Day to continue obsessing over his predecessor, former President Barack Obama after a conversation leaked of Obama criticizing the justice department's decision to drop the case against former national security adviser Michael Flynn.

On Friday, recordings of a conversation between Obama and members of his administration were leaked to Yahoo of him saying the nation's "understanding of rule of law is at risk," The Hill reported.

“The news over the last 24 hours I think has been somewhat downplayed — about the Justice Department dropping charges against Michael Flynn,” Obama reportedly said.

“And the fact that there is no precedent that anybody can find for someone who has been charged with perjury just getting off scot-free. That’s the kind of stuff where you begin to get worried that basic — not just institutional norms — but our basic understanding of rule of law is at risk," he continued. "And when you start moving in those directions, it can accelerate pretty quickly as we’ve seen in other places.”

Flynn was fired by Trump after allegedly lying to Vice President Mike Pence about his conversations with Russia about sanctions imposed by the Obama administration. According to The Guardian, U.S. intelligence committees have since probed the idea that Russia interfered with the election in favor of Trump.

The former national security adviser later pleaded guilty to lying to the FBI but ultimately decided to change his plea while awaiting sentencing as rumors circled of Trump granting him a pardon, according to The Guardian.

Disturbed by his comments, Trump went on a tweetstorm, publicly ridiculing the former president and accusing him of attempting to undermine his presidency and force an FBI investigation into Flynn.