One of the biggest stories to dominate the headlines last week was the alleged blow-up between Donald Trump and Secretary of State Rex Tillerson. After the Secretary of State questioned the president's intelligence, Trump is now calling for an IQ test.

Trump on Tillerson

When Donald Trump pulled off the shocking upset and defeated Democratic nominee Hillary Clinton last November, he vowed to pick on the "best' people to join him in his administration. In the nine months that have followed, a laundry list of names have either quit, resigned, or been fired as chaos ensues in the White House.

One name that is hanging on by a thread is Rex Tillerson, the former head of Exxon Mobil who was brought on board to run the State Department. Last week in an exclusive story from the New York Times, the paper detailed Tillerson's plan to originally quit the administration over the summer, as well as a heated exchange that took place between himself and the president. According to the NYT, Vice President Mike Pence had to calm the two down after Tillerson referred to Trump as a "f*cking moron." Fast forward to present day and Forbes magazine reports on October 10 that the president is now calling for an IQ test to be taken between the two.

In an exclusive interview with Forbes magazine, Donald Trump addressed the aforementioned report by the New York Times in regards to the rift between himself and the Rex Tillerson.

"I think it’s fake news, but if he did that, I guess we’ll have to compare IQ tests,” Trump said, before adding "I can tell you who is going to win."

Following the report in the New York Times, Rex Tillerson called for a press conference to push back, though he never fully dismissed the contents of the article.

Additional reports have noted that Donald Trump was furious with his Secretary of State, with many close to the White House believing that it's only a matter of time before Tillerson is removed from his position. In addition, Trump recently took to Twitter to undermine Tillerson by claiming that he is "wasting his time" by negotiating with North Korea

Moving forward

As Donald Trump and Rex Tillerson continue to butt heads, the commander in chief is struggling to follow through on his many campaign promises.

From the border wall, to health care, to tax reform, Trump can't seem to take advantage of a Republican majority in Congress, as his approval rating drops to just 35 percent in a recently released poll.