Congress must not allow the Tweeter in Chief to unleash a dangerous and costly nuclear arms race. https://t.co/YYdlo3tSoa — Bernie Sanders (@SenSanders) December 23, 2016

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While Donald Trump's official title right now is "president-elect," former Democratic presidential candidate Bernie Sanders has just referred to Trump by a different title.

"Tweeter in Chief."

Sanders took to Twitter Friday to respond to Trump's Thursday tweet concerning a need for the U.S. to expand its nuclear program.

The United States must greatly strengthen and expand its nuclear capability until such time as the world comes to its senses regarding nukes — Donald J. Trump (@realDonaldTrump) December 22, 2016

Sanders' stance is that the government should seek to reduce the number of nuclear weapons.

Presidents, Republicans and Democrats, have understood that our goal must be to reduce the number of nuclear weapons, not expand them. — Bernie Sanders (@SenSanders) December 23, 2016

What do you think of this title for Trump?

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