Labour grandee Harriet Harman joins Beth Rigby and Ruth Davidson as the first Friday sub for Jess Philips during the election period.    They break down the Labour tax row that has dogged both Rishi Sunak and Sir Keir Starmer since the first leaders’ debate earlier this week, give their take on the impact Nigel Farage standing in Clacton-on-Sea will have on the campaign, and lift the curtain on how the parties will be writing their manifestos.     Plus, Harriet reveals a surprise ally from her time in the Commons.       Email Beth, Ruth, and Harriet at electoraldysfunction@sky.uk, post on X to @BethRigby, or send a WhatsApp voice note on 07934 200 444.