If the rumors are correct, and Colin Powell endorses Barack Obama on “Meet the Press” on Sunday, it will create a media frenzy. That will be advantageous for Obama, since controlling news cycles at this stage of the game is an undeniable asset. But will that endorsement change a single vote, or convince independent uncommitted voters to pull the lever for Obama? Do voters uncommitted at this stage of the game really care what Colin Powell thinks? Do they know who Colin Powell is, aside from having a vague recollection that he was the guy who told them Saddam Hussein had WMDs?