It all started Wednesday morning, when Fox in a CNN interview called Trump's visit a "political stunt." Fox added: "We don't like him. We don't want him. We reject his message."
Shortly after, Trump responded with a tweet, saying Fox had invited him to Mexico as well:
Then Fox tweeted his response to Trump.
After meeting with Pena Nieto in Mexico, Trump is scheduled to travel to Arizona to deliver an evening speech designed to clarify his stance on immigration reform.