William E. Foster (Washburn): Partisan Politics and Income Tax Rates. Why would anyone ever want to run for Congress? Shane Goldmacher on how Democratic and Republican officials cajole potential candidates into signing on for constant stress, ceaseless fundraising, and the danger of losing your job every two years. The next Elizabeth Warren: In fighting lousy, overpriced Internet providers, Susan Crawford has found a populist crusade for our time. The most powerful vice president since the last vice president: Joe Biden is history's most powerful veep — just like all the others. Should Martin O’Malley be president? The governor of Maryland is a long shot for the White House — and the best manager in government today. Norm Ornstein on the myth of presidential leadership: Many Washington pundits are critical of the president’s ability to wrangle concessions out of Congress, but they forget that his power has limits.