Plans to make voters show photo ID at polling stations to prevent fraud will rob "vulnerable" people of a say in elections, ministers have been warned.
The scheme is being trialled in five areas at 3 May's local elections.
But more than 40 campaign groups have written to constitution minister Chloe Smith calling for it to be scrapped.
After that mess of an election in Tower Hamlets where some people voted several times to get that Islamist elected as mayor, I can understand why there are calls for this move, but what if you don't have photo ID?
I was in favour of ID cards and that scheme should not have been scrapped, especially as the money had been spent on it and it was ready to be rolled out.
I don't drive and my passport expired more than ten years ago, what do I do? Pay for a new passport just for the "honour" of voting?