lickety jackblog

Impeachment is a political process with some legal overtones, not a legal one with some political overtones. To get impeachment going you have to have substantial support in the House of Representatives -- and, as the outcome of the Nixon and Clinton impeachments indicates, it's probably a good idea to have substantial bipartisan support. Nixon left office before the impeachment process was concluded, but he did so because he knew that he didn't have much support even within the Republican Party anymore, and Clinton was not convicted by the Senate at least in part because he had essentially unified support from his own party.

The Nader-DeLong position has no legs politically because Republicans in the House and Senate -- a majority in both houses, after all -- support the Bush administration's policy. And, because it has no legs politically, it has no legs legally either.

If you want to impeach the president, you're going to have to win elections. And, of course, if you can do that, you might not have to impeach the president anyway.