Democrats - urgent need for Unity

On the eve of the Democratic National Convention it is a great relief that:

(a) The Florida and Michigan delegations have had their full voting rights restored.

and

(b) Hillary Clinton is set to release her voting delegates to Obama.

Both these things should go some way to further restoring the unity of the Democrats. They urgently need that unity. Polls show that there are a significant number of Clinton supporters (21% in one poll) say they will vote for McCain.

John McCain is a formidable foe for Obama. I very much doubt that any Democrat actually wants another four or eight years of a Bush look-a-like in the White House. There is therefore an urgent need for the Democrats to stop playing silly wotsits and show real unity this week.