Paul Krugman schools Marco Rubio after he calls Biden's Build Back Better plan 'Marxism'

On Thursday, Sen. Marco Rubio (R-FL) took to Twitter to denounce President Joe Biden's social spending plans, claiming that they constitute "Marxism."

Rubio's comments were swiftly ridiculed by Paul Krugman, political commentator and Nobel Prize-winning economist. "Ah yes, remember that stirring line in The Communist Manifesto: 'Workers of the world, unite to spend 1.2% of GDP on popular programs over the next decade!" replied Krugman.

Biden's proposal, known as the "Build Back Better Act," calls for a wide array of new, extended, or expanded social programs, including child tax credits, new Medicare benefits, free community college and pre-K for young children, and new climate mitigation and clean energy programs.

The plan as is calls for $3.5 trillion in spending over ten years, although some more conservative Democrats, chiefly Sens. Joe Manchin (D-WV) and Kyrsten Sinema (D-AZ), have said they want the overall size of the program to come down.