Look like he just handed the Labour Party leadership to Corbyn on a plate...
// In a series of hustings during the leadership contest, Mr Burnham had expressed anger at Ms Harman’s decision not to oppose the welfare measures after she suggested there was no public appetite for rejecting them.
But the shadow health secretary issued a statement in a letter to fellow MPs hours before the vote saying he would now abide by collective responsibility by abstaining.
In a post on Facebook after the vote, Andy Burnham claimed he would now oppose the bill despite refusing to vote against it in the Commons.
"Tonight I am firing the starting gun on Labour's opposition to this bill," he said. "If I am elected leader in September, I am determined that Labour will fight this regressive bill word by word, line by line."
It came as Mr Burnham, the frontrunner for the leadership, has been accused by MPs of damaging the party by “flip-flopping” over whether to oppose the controversial welfare reforms.//
http://www.telegraph.co.uk/news/politics/11752496/Welfare-cuts-passed-despite-Labour-rebellion.html
The Conservatives, and their supporters, must be overjoyed?