Donald Trump has insulted another journalist. The real estate mogul and current Republican presidential contender was giving a press conference Tuesday night when he told Jorge Ramos to "go back to Univision," according to CNN Money.

The two men have a bit of a complicated past. Ramos, a Univision anchor, has been trying to get Trump to do an interview with him for several months. Ramos attended Trump's rally in Iowa on Tuesday, though he wasn't sure if he would even be allowed inside. Ramos asked Trump a question without being asked.

"You haven't been called," Trump said before making the Univision comment, CNN Money reported. Security escorted Ramos out, but a Trump staffer asked Ramos to come back inside minutes later. He did, and that's when things really got ugly. Trump and Ramos got into an argument about deportation and immigration, two hot-button topics that Trump has been talking about during his campaign events.

Trump is currently suing Univision. He's asking for $500 million because the network decided not to air the Miss USA pageant, which Trump owns. Univision dropped the pageant after Trump made inflammatory remarks about Mexican immigrants, likening them to criminals and rapists.

"I don't believe I've ever met him, except he started screaming. I didn't escort him out," Trump said of Ramos later, The Los Angeles Times reported. Univision invited Trumped to appear on the network again on Tuesday, which he declined.

"Never in my life - and I've been a journalist for more than 30 years - have I been thrown out of a press conference," Ramos said in a later interview, according to Latino Fox News. "As a journalist, you have to take a stand. I think the best journalism happens when you take a stand."

Trump has also been engaged in a public feud with Fox News anchor Megyn Kelly.