The true extent of Obama’s influence over Congress was more accurately described by Ezra Klein yesterday:

[P]oliticians understand their incentives. Republican legislators have to win primaries among electorates that deeply dislike President Obama. In that world, working with the White House very likely means losing your job. It also means making Obama more popular, which means making it less likely that you and your party will get back into the majority in the next election. And on the other side of this equation is—what? Bourbon with Obama? A speech Obama gave to 2,000 people in your state?

The White House can employ better or worse strategies, of course. But it’s deeply insulting to the grown men and women who populate the U.S. Congress to posit that the only reason they’re acting as they are is that the president doesn’t lavish them with sufficient attention, or campaign in their districts, or twist arms like Lyndon Johnson

So how exactly is Obama supposed to change Republican votes again? There’s clearly an audience for simplistic stories about a president’s success or failure in their dealings with Congress, but reporters have to decide whether they’re in a different business than Aaron Sorkin or if they’re selling another version of the same political fantasy.

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Brendan Nyhan is an assistant professor of government at Dartmouth College. He blogs at brendan-nyhan.com and tweets @BrendanNyhan.