Louisiana Gov. Bobby Jindal (R) says in a new op-ed that Republicans should focus their scandal response as much on President Obama's role in growing government as on who in his administration knew what and when.

Jindal, a potential 2016 presidential candidate who has sought to become a steady hand in guiding his party through its recovery, says the latter is still a valid line of inquiry, but that the size of government is a winning issue for the GOP.

"We don't know what the president knew of these matters before they became public, and it strains credulity to suggest that his top political advisers were in the dark," he wrote on CNN.com. "But again, when you grow government this big, these kinds of scandals are inevitable, and he bears the responsibility for that."

Jindal adds: "The scandals cut at the core ideology of the Obama presidency. Indeed, these issues aren't just the failure of an individual, but the failure of a system in which liberals put too much trust in big government."

Here's the entire op-ed.