He failed to make America better now than it was 8 years ago.
Eight years ago Bush and Maliki were negotiatiating the U.S. surrender and withdrawal from Iraq where over 4000 Americans were killed and 40,000 wounded to find WMD that were never there.
That was better than now only if you like to see US troops getting killed and wounded in a mistaken war as the Republican Presumptive Nominee for President has told you that it was a mistake. A big dumb Bush mistake. And Trump said Bush lied about the reason for it too. You never talked about impeaching liar Bush, But you'll vote for Trump who as dumb as he is was even able to figure out invading Iraq was a mistake.
Eight years ago Afghanistan was close to falling back under Taliban control because of the mistake Bush made when he decided to invade Iraq. Osama Bin Ladin was alive and out of the President's mind even though OBL directed the murder of several thousand Americans and visitors on American soil during Bush's watch. Bin Ladin is dead now.
Eight years ago the Great Bush Recession was about to implode the U.S. Economy and soon millions of jobs were about to be lost. Now Since Obama became President 14 million jobs have been created every month since the Great Bush Recession was ended.
So you think job killing recession is better than seven years of steady job growth.
Eight Years ago McCain was picking Sarsh Palin. Now the Republicans are putting the Clown on the top of the ticket. America is worse because of that. That is hardly Obama's fault.