Apparently Trump is too stupid to remember that we first heard from Comey that Trump was under investigation on March 20, 2017. Rosie O'Donnell's Tweet was dated in December 2016.
When did we first learn that Comey was investigating Trump?
March 20, 2017 - two full months after Trump became president. Therefore, after hearing this new information, why would Hillary supporters who were previously calling for Comey's head want to see him fired in the middle of his Trump-Russia investigation?
TIMING is everything! I don't recall hearing any Democrats call for Comey to be fired after first learning from Comey on March 20, 2017 that Trump was also under FBI investigation since July 2016. Also, I challenge anyone to find any quotes where I called for Comey's firing after March 20, 2017.