Labour leadership hopeful Andy Burnham has said he will turn down a 10% planned pay rise for MPs bringing their salary to £74,000.
Mr Burnham said if the hike goes ahead he will refuse to accept it or donate the money to local groups.
The shadow health secretary said the proposed rise "cannot be justified".
Writing on Twitter the Leigh MP said:
I have always been clear that 10% pay rise for MPs cannot be justified. I won't accept it. Will turn down at source or give to local groups.
David Cameron opposed a more than 10% pay rise but said it was ultimately a decision for the Independent Parliamentary Standards Authority (Ipsa).
Downing Steet said the Prime Minister will not seek to block Ipsa's proposal - meaning he will personally get the extra money taking his salary to £149,440.
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