Since the day Donald Trump announced his candidacy for president, he has never been shy about lashing out at various world leaders, with the exception of Russian President Vladimir Putin. After 100 days in office, the president is now engaged in a controversial dispute with North Korea, while sending mixed signals in the process.

Trump on North Korea

During the 2016 presidential election, Donald Trump didn't hold back his opinion on many issues. When it came to criticizing other countries, Trump pushed his "America first" talking point, shifting the blame of global issues away from the United States.

The former host of "The Apprentice" singled out China, Mexico, and other countries and world leaders, which helped propel him to an upset victory over former Secretary of State Hillary Clinton last November. While Trump never said a bad word about Vladimir Putin, only further feeding into the growing Russian scandal in the process, he was mixed on his views about North Korea and leader Kim Jong-un. Trump has criticized Kim for North Korea's nuclear weapons program in the past, but has often praised him as well. After giving yet another complement to Kim during the April 30 edition of "Face the Nation" on CBS, Twitter users were quick to give their thoughts.

(Trump's comments come at 2:35 in the above video.)

President Donald Trump spoke with CBS host John Dickerson on Sunday, and gave a questionable reaction when pressed on the status of the United States' relationship with North Korea.

"People are saying 'Is he sane?' I have no idea," Trump said, before giving Kim Jong-un credit for taking over the country following his father's death. "He's dealing with obviously very tough people," Trump continued, while noting, "A lot of people tried to take that power away, whether it was his uncle or anybody else, and he was able to do it." Not stopping there, the billionaire real estate mogul went on to refer to Kim as a "pretty smart cookie."

Twitter reacts

In response to Donald Trump's favorable comments about Kim Jong-un, social media users had a lot to say.

"Typical psychopath-when U realize someone can out bully U-praise them2 make them like U & bring them 2 your side," one Twitter user wrote.

"Donald Trump calls Kim Jong Un 'a pretty smart cookie.' I call (DT) 'an ugly dumb fruitcake,'" another tweet went on to read.

"Wow. I am pretty sure I could stay in power if I kill family members and keep my population away from the rest of the world," an additional tweet noted. "How does mass murder, murdering relatives, keeping NK in darkness & hunger constitute being a 'Smart Cookie?'" a Twitter user wondered.