Instagram/Donald Trump/screengrab
His latest video hit President Barack Obama for describing the Islamic State group (also known as ISIS) last week as "a bunch of killers with good social media."
The video interspersed news clips of Islamic State violence with clips from Obama goofing around with a selfie stick for a BuzzFeed video.
"IT IS TIME FOR SERIOUS LEADERSHIP," the Instagram video declared.
Trump has released a series of these seemingly low-budget attack ads throughout the campaign. Some have been humorous, such as one that suggested presidential rival and former Florida Gov. Jeb Bush (R) could help people who have difficulty sleeping. Others, like one hitting another rival, Ben Carson, have been more hard-hitting.