Trade union fat-cats will “never be content” with Labour’s concessions, Aslef’s chief has claimed. Mick Whelan, who is general-secretary of the train driving union which recently struck a bumper pay deal with Sir Keir Starmer, warned there was nothing Labour could do to appease the movement completely. Labour Ministers had claimed relations with unions were “entering a new era” but there will likely be more concerns about inflation-busting pay deals. Aslef was offered a 14 per cent pay rise over three years, which will see the average driver’s salary rise from £60,000 to just under £70,000. He…