The most recent was someone being able to scale the fence around the White House, run across the lawn and make it all the way inside the front door before being stopped.
This followed such shortcomings as the 2012 prostitution scandal where agents partied with prostitutes in Colombia during an advance trip, a shooting incident in 2011 where the agency took four days to confirm or acknowledge that shots had been fired that struck the White House, and the 2009 incident where a couple "crashed" a state dinner at the White House.
Now some may point out that these problems are institutional and started in the Bush years as the memory of the assassination attempt on President Reagan faded from memory.
But you just know at some point a conservative pundit or talking head, or at least a Fox News panelist, will suggest the issue might be that the Secret Service is demoralized. After all they are being asked to protect, and potentially lay down their own lives, for a President they just "know" is not really Constitutionally qualified to be president. No where in their job description does it say they have to protect Kenyans. No wonder they aren't on top of their game.
Just saying, is it that far fetched to imagine someone at Fox News, or some other right wing sites, at least giving voice to that type of speculation?