Public praying

You can be Roman Catholic, a Republican but somehow putting the two together is feeling a little scary.  These people and other Christians have me thoroughly confused.  If I choose to or not to pray at any given time, I can.  Why do they think otherwise?  If one believes in God, then silent prayer is just as good as a public display.  Why don't they understand that?  I would think God does.  There is no point to argue!  No reason to demand, yes demand public display.  A true Believer, whomever it may be, understands that.  Now you try....................................marge