MSNBC's Joe Scarborough and Mika Brzezinski bickered on the air over president Joe Biden's performance in the first presidential debate.
Scarborough opened Friday's episode of "Morning Joe" by openly questioning whether the president was up to the task of defeating Donald Trump and serving another four-year term, saying Biden "tragically did not rise to the occasion," but Brzezinski took exception to panelist Mike Barnicle's unvarnished criticism.
"You saw Donald Trump for fully an...