WATCH: Joe Biden can't remember Mitt Romney's name

Presidential hopeful Joe Biden has provided those questioning the former vice president's cognitive ability more ammunition, as Biden apparently forgot the name of Utah governor Mitt Romney.

"I got in trouble when we were running against the senator who was a Mormon—the governor" said Biden in reference to Romney.

Recently, Biden appeared to have forgotten the name of the great recession, as well as the details of a stimulus package he oversaw while service as Vice-President to Barack Obama.

Biden, whose cognitive abilities have been called into question by President Trump, was also previously criticized when he told WAP artist Cardi B that he had "four kids," and "five grandkids."

Biden actually has seven grandchildren: Natalie, Robert, Naomi, Finnegan, Maisy, and a seventh baby Biden, who is the son of Hunter Biden.