Kamala Harris spent months shooting down concerns over Biden's mental competency

In the months leading up to President Biden's devastating debate performance last month and his subsequent decision to suspend his re-election campaign on Sunday, Vice President Kamala Harris made several efforts to affirm and defend his mental acuity, according to a new Fox News Digital analysis. 

Questions posed to Harris over Biden's mental competency were raised frequently beginning in the fall of 2023, as the president made recurring comments at public events that sparked concerns over his fitness ahead of the election year.