Sen. Bernie Sanders (I-Vt.) will deliver an address Wednesday afternoon on "Medicare for All" that is widely expected to ramp up his attacks on fellow presidential contender, Joe Biden.

Sanders, speaking at George Washington University, will call on his rivals for the Democratic Party's presidential nomination to reject campaign donations from big drug companies and urge the party to embrace his Medicare for All plan, according to prepared remarks provided by his campaign.

Watch the live video above.