MSNBC host Joe Scarborough defended President Joe Biden’s mental fitness earlier in June before doing an about-face following the presidential debate hosted by CNN. Scarborough defended Biden during a June 5 episode of “Morning Joe” while discussing a Wall Street Journal articlefeaturing dozens of observations from Republicans and Democrats about Biden’s mental fitness, and claimed Wednesday that Trump was “scared out of his mind” to debate Biden. Following Thursday night’s debate, when Biden appeared to freeze several times and made multiple verbal gaffes, Scarborough struck a different tone,…