Senator Elizabeth Warren didn't pull any punches in the latest round of her ongoing Twitter war with Republican presidential nominee Donald Trump Wednesday, dinging him for "whining."

"It's not rigged, [Trump]. You're losing fair & square. Put on your big-boy pants because this is what accountability looks like," the Democrat from Massachusetts wrote in a series of tweets several hours before the last presidential debate of Election 2016.

Warren also repeated President Obama's criticism that Trump is "whining" before ballots have been cast.