The decision of so many leaders of the Democratic Party to support a senator who while opposing most of the party on an increasing number of important issues, was still a colleague and, presumably, a friend, was a mistake, but that mistake was compounded by the failure of any of these prominent Democrats to insist that Lieberman back the winner of the primary before agreeing to support him in that primary. This kind of agreement is very common in primaries and one of the things which helps hold the party together. By not demanding this as a condition for their endorsement, all these Democratic leaders opened the doors for Lieberman, after losing the primary to Lamont, to continue to contest the general election. Most of those prominent Democrats endorsed Lamont after he won the primary, but because they had not done their political work in advance, had much less leverage with Lieberman as they should have.