The tirade began Wednesday morning, after the real estate magnate was hit with public mocking him for coming in second.
A previous ‒ and since-deleted ‒ tweet said Cruz "illegally stole" the caucus win.
Ted Cruz didn't win Iowa, he stole it. That is why all of the polls were so wrong and why he got far more votes than anticipated. Bad!
— Donald J. Trump (@realDonaldTrump) February 3, 2016
Trump then laid out why he believes Cruz committed fraud during the caucuses, including releasing a statement that neurosurgeon Ben Carson was quitting the race and asking for the doctor's supporters to caucus for Cruz instead; sending out voter violation certificates; and claiming that Trump was strongly in favor of Obamacare and abortion.
There was speculation that Carson had left Iowa early on the day of voting.
The Carson campaign accused Cruz of playing dirty tricks. The Texas senator apologized on Tuesday.
The billionaire businessman also attacked Cruz from the stump on Tuesday night, bashing the Canadian-born senator's honesty, Business Insider reported.
"What kind of people do we have running for office?" Trump said at a campaign event in Milford, New Hampshire. "No, it's honestly really, really dishonest. And I think I know why. You know why? Because he was born in Canada!"
Following Trump's second-place finish in Iowa - which means he will move on from the Hawkeye State with only one less delegate devoted to his candidacy than first-place finisher Cruz - the Donald took to Twitter to bash "unfair treatment by the media," despite his campaign's domination of media coverage in the run-up to the caucus.
Iowa Secretary of State Paul Pate tweeted Tuesday morning that he had received complaints of voter fraud in the caucuses, but cautioned Iowans that the meetings are not official elections and are up to each party.
There have also been allegations of potential fraud during the Democratic caucuses on Monday night.




Any outside observer watching the electoral process in the US should be forgiven for wondering why the US candidates are not spending more time awakening their people to the true depth of their country's current state of disrepair and their inherent vulnerabilities.
There must be so much hope, employment and money to be made by modelling a big vision of the list nag term future direction of the country and starting to construct it. The USA today no longer represents the dream of future living, as it once did. The reality and hardships of life there is somewhat different. The Internet has a sorry list of the worst places in the US to live due to delapidation and deprivation, which for all its paper wealth, makes it look little different from a third world country.