Republican National Committee Chairman Reince Priebus gave a blistering assessment of the GOP's problems on Monday based on the results of a months-long review, and he called on the party to reinvent itself and officially endorse immigration reform.

Referring to the November election, Priebus said at a breakfast meeting: “There’s no one reason we lost. Our message was weak; our ground game was insufficient; we weren’t inclusive; we were behind in both data and digital; and our primary and debate process needed improvement."

"So, there’s no one solution," he said. "There’s a long list of them.”