Democratic presidential candidate Joe Biden was caught on video sniffing a baby at a Super Tuesday campaign event in Oakland, California. The incident was filmed by New York Times national political reporter Katie Glueck, who then posted the incident to her Twitter account.

Tearing a page right out of his own play book, Biden goes in for the sniff instead of the more conventional kiss. It's a good long sniff too. What is it with this guy and olfactory hues?

As he leans in, Biden rather oddly says, "Let me tell you a secret," followed by the sniff, and then, "Don't tell your momma I told you." What a weird thing to say to a child! Even the baby gets it and instinctively turns away from him. Watch below.

From earlier today: Biden greets a baby in Oakland pic.twitter.com/BwJRe05utZ — Katie Glueck (@katieglueck) March 3, 2020

Remember, this is not an isolated incident with Biden. Watch a compilation of his antics below. He makes people appear noticeably uncomfortable at times.