President Biden is apparently an even bigger believer in dogs than we all previously thought ... he says man's best friend might be able to help cure cancer!!! The Prez showered dogs with tons of praise Tuesday during a visit to Ohio State University’s James Cancer Hospital, saying ... "Dogs may help cure cancer. Not a joke." Biden's statement immediately raised a lot of eyebrows around the country, because even if ya love dogs -- CURING cancer??? Watch the clip, because the President did say something 100% factual ... which is that dogs can smell cancer, and some have been...