Twitter users accused President Joe Biden of lying about his time visiting Black churches and being an activist in the desegregation movement in his younger years.During remarks made at a recent White House event in honor of Black History Month, the 46th president went on a tangent about how when he was younger, he used to attend Catholic Mass early Sunday morning and then head over to the local Black church to participate in its service.Biden began his claim by explaining how he is so familiar with Black Christian hymns. In the clip, shared by the RNC Research account, he said, “You know, I know most of those songs for a simple reason. As my buddy …