text:  this is a special report from abc news the race for the white house i'm richard cantu it's hard to debate a liar president biden's words after last night's cnn presidential debate during which some wags called into question his performance there is no question this is not the night that the biden campaign wanted or needed they were going into this hoping that the president's performance would put to rest those remaining concerns about his age he had a rough start he was rambling he struggled at times