For more than two years, the Tea Party has driven our national politics. It gave full voice to anti-Obama anger. It framed last fall's elections as a battle over spending and the growth of government. When its activists swept Republicans into power, the Tea Party established the contours of the current debate over deficits and reforming entitlement programs, which follow conservative principles much more closely than the Republicans' limited formal power -- they control only the House -- should allow.
Joshua Green writes a weekly political column for the Boston Globe.