I'm clearly pointing out how Obama's campaign breaks your assertion that you have to go right to win, despite the Democrats losing every election this century when they tried to go to the right.
Obama explicitly campaigned to the left by advocating for policies to make thing better, hence that whole last bit. Whether his presidency veered more towards the right is immaterial to the point at hand.
Also, how much of your paragraph is related to the campaign and isn't just you trying to find any excuse why your a argument doesn't hold water? Because we're not talking about the presidency, that's you moving the goalposts. This is about the campaigns that were run (and lost!) by democratic candidates despite your incorrect assertion that campaigning right is necessary to win.