Trump tweets 9/11 photo to Cruz
© Getty Images

Republican presidential front-runner Donald TrumpDonald TrumpWhy Americans should be bitter over Trump’s sweetened Mexican sugar deal Dems push leaders to talk less about Russia Kobach fined over Trump meeting memo MORE on Saturday brought his Twitter attacks against Texas Sen. Ted CruzTed CruzTrump maintains healthcare push heading into weekend Trump called Cruz to press him on ObamaCare repeal bill: report US gas exports not the elixir to European energy security MORE to a new level. 

The billionaire real estate tycoon tweeted an image of the World Trade Center in the aftermath of the Sept. 11, 2001, terrorist attacks. 

"Is this the New York that Ted Cruz is taking about & demeaning?" Trump tweeted.

  

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On Tuesday, Cruz slammed Trump for embodying "New York values."

Trump pushed back at Thursday's Republican debate, calling the statement "very insulting."  

Trump has been targeting Cruz with attacks in the days since the debate, calling him a "hypocrite" for his undisclosed bank loans and taunting him over a lawsuit about his citizenship.

He barraged Cruz with Twitter attacks throughout the day Saturday.