Opposing a president’s agenda might be enough to win a midterm election in which (largely base) voters are in the mood to send a message to the man in the White House. But simply saying “I am not that guy” is not even close to enough to win a presidential election. And that goes double for 2016, when Obama won’t be on the ballot and when the Republican brand could be in the gutter nationally. Need evidence of that brand problem? The same Quinnipiac University poll, released last week, that showed Obama reaching his low ebb in terms of job approval also showed a whopping 73 percent of registered voters expressing disapproval of how congressional Republicans are doing their jobs.Opposition to what Obama has done is not a path to winning over Hispanics, women or young voters. To win in 2016, the Republican nominee will need to outline a set of policy prescriptions — education seems like a ripe area — that both changes the “old white guy” perception that looms over the party and appeals to some of the demographic groups that have moved away from the GOP in recent years. - www.washingtonpost.com