Momentum evolved out of Jeremy Corbyn’s 2015 Labour leadership bid to build on the energy and enthusiasm generated by the cam ... paign. Momentum has over 150 local groups, 23,000 members and 200,000 supporters, united by their shared vision for a fair and equal society. Momentum supports the Labour party, and works to increase participation and engagement in the party to enable it to win elections and enter Government. Momentum believes in an open, democratic Labour party, powered by its members. read more