Republican presidential candidate Ted CruzTed CruzTrump's America: Businessmen in, bureaucrats out When Trump says 'Make America Great Again,' he means it Booker is taking orders from corporate pharmaceuticals MORE said on Sunday that he has no plans to "insult" GOP front-runner Donald TrumpDonald TrumpFox declines to renew contracts for several contributors Madonna to critics of women's march: 'F--k you' DOJ: Trump hiring Kushner doesn't violate anti-nepotism law MORE.
"I do think policy differences are fair game," he added.
Cruz said that only a month ago, Trump was "telling everyone how much he liked me." But now, since Cruz has gained in the polls, he wakes up every morning to a new insult surfacing against him, Cruz added.
"I will give him credit that when he insults someone, its always memorable and colorful," Cruz said of Trump.
Cruz also said that he and Trump have very different views, but said the voters deserve more than just petty insults.
In the past week, Cruz has shifted his criticism to Marco Rubio. In an ad in Iowa, Cruz called the Florida senator the "Republican Obama."
In response, Rubio said in an interview Sunday that he opposes “virtually everything Barack Obama stands for.” Rubio called it "strange" that Cruz would target him in the last few days before the Iowa caucuses.