THE HILL: Feinstein squares off with Obama.

Sen. Dianne Feinstein is squaring off with President Obama again, this time over a long-awaited Senate report on the Central Intelligence Agency’s harsh interrogation practices.

Feinstein, the senior senator from California and chairwoman of the Senate Intelligence Committee, has repeatedly battled the administration on a string of different issues.

An institutionalist who has repeatedly sought to defend congressional power, Feinstein takes her oversight role seriously. And while she is from a left-leaning state, the five-term senator frequently pushes Obama from a centrist point of view.

“She represents discontent form the center which doesn’t get as much coverage as the concern on the left,” said Bruce Cain, a professor of political science at Stanford University.

I wonder why that is?