Wisconsin Gov. Scott Walker, widely seen as a 2016 presidential GOP candidate, is making his sales pitch to Republicans, and it’s an aggressive one: He says he’s deeply conservative, he’s good at winning elections, he’s fearless in promoting controversial GOP causes and he’s a humble, self-made man. Campaigning last week in South Carolina, a key early-primary state, Walker reiterated the story he’s been telling about himself, nailing down his narrative. But should voters believe it? NBC News notes that his conservatism is tempered by political calculation, as in his shifts on immigration policy and gay marriage, and that he downplayed his support for a right-to-work bill when he was running for reelection, despite his high-profile battles with unions in his state.