Labour Party leader Jeremy Corbyn has arrived at the Caterpillars Pre School to speak to parents about tax credit cuts.
He's been joined by Peter Lamb, the Labour Leader of Crawley Council. Mr Corbyn, has already clashed with the Tories over what he says will be a "crisis for three million families." He has demanded that David Cameron guarantees that working families will not be worse off.
The Government's plans to cut tax credits by £4.4 billion were defeated in October when the House of Lords passed a motion to delay any decision while further assessment is carried out.
New proposals are expected to be set out in the Autumn Statement this month. Mr Cameron has told MPs that the basic level of child tax credits would stay the same.