01 Apr 2010 21:22:01 GMT
* Sudan's main opposition withdraw from
presidential vote
* At least five parties announce full
boycott of all polls
* U.S. envoy in crisis talks with political
parties
(Adds five parties announce full boycott)
By Opheera McDoom
KHARTOUM, April 1 (Reuters) - Sudan's
main opposition parties have withdrawn from presidential elections, a senior
member of one of the groups said on Thursday, a move that could wreck the
looming vote and damage a faltering peace process.
At least five political parties, including