Mika Brzezinski questions Trump's sanity after 'bizarre' G-20 tweet

President Donald J. Trump- kicked off the G-20 Summit with his typical Twitter fire on Friday -- and the move may have inadvertently renewed the saga unfolding between him and MSNBC "Morning Joe" co-host Mika Brzezinski.

While in Germany for the G-20 Summit -- which brings together leaders from the biggest and most powerful countries in the world -- Trump tweeted about the 2016 election

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"Everyone here is talking about why John Podesta refused to give the DNC server to the FBI and the CIA. Disgraceful!" he said in the tweet.

Brzezinski, who has been the subject of some recent scorching Trump tweets herself, called the tweet bizarre.

"That does make you wonder what's going on," she added.

Trump's tweet seemingly referred to the DNC's decision to initially refuse to allow the FBI direct access to its servers after the cyberattack.

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But that was not enough for Brzezinski who questioned if Trump was mentally stable.

"There are a lot of questions people have about this president," she continued. "What's going on in his head? It's so wildly out of place that you can't help but go 'what is wrong with him?'"

Brzezinski and the "Morning Joe" crew insisted the criticisms they have lobbed at the president are not personal, but that his behavior seems to be out of place on the world stage with Russian President Vladimir Putin and German Chancellor Angela Merkel.