Republican presidential nominee Donald Trump has been under fire for recent claims that the election is rigged.

On Sunday afternoon, Trump tweeted, "This election absolutely is being rigged by the dishonest and distorted media pushing Crooked Hillary–but also at many polling places–SAD."

This statement prompted backlash from Democrats and a few fellow Republicans. President Obama responded to Trump’s charges that the election is rigged during a Tuesday press conference.

"I have never seen in my lifetime or in modern political history any presidential candidate trying to discredit the elections and the election process before votes have even taken place," Obama said. "It’s unprecedented. It happens to be based on no facts."

Before Trump’s recent comments, however, Democrats were not shy in claiming that U.S. institutions were "rigged." From the U.S. economy to the country’s political system, Democrats shouted claims of those institutions being rigged.

"The game is rigged," Sen. Elizabeth Warren (D., Mass.) said.

"They’ll do anything to rig the system," Obama echoed.

"People say the game is rigged," Democrat presidential nominee Hillary Clinton declared on the campaign trail.

"A rigged economy," Sen. Bernie Sanders (I., Vt.) repeated throughout the Democratic primary and continues to do so.