London's Muslim Mayor Rips Donald Trump Jr., Says "I've Been Doing More Important Things"

London's first Muslim mayor, Sadiq Khan, refused to answer any questions regarding Donald Trump Jr.'s tweet Wednesday evening when he criticized Khan for saying that terrorism is "just a part of life."

“I’m not going to respond to a tweet from Donald Trump Jr., I’ve been doing more important things over the past 24 hours," Khan said in an interview with CNN.

"You have to be kidding me?!: Terror attacks are part of living in big city, says London Mayor Sadiq Khan," Trump Jr. tweeted just hours after Wednesday's Islamic attack that left several dead and over 40 injured.  

Khan is an outspoken critic of President Donald Trump and America's right to regulate its borders.

During a trip to New York City in September of 2016, Khan lectured Americans on the reality of Islamic terror, saying that attacks are “part and parcel of life in a big city.”