Photo by Jeff J Mitchell/Getty Images At an emergency services roadshow on the edge of Loch Lomond, ambulances, police vans and fire engines line up outside a row of souvenir shops. There’s the cacophony of crying toddlers, and then on top of that there is the cacophony of their older brothers and sisters being lifted into the cockpits of the vehicles by policeman and paramedics to turn the sirens on and off, and on and off. I am sat on a low wall grinding my teeth because this is where Anas Sarwar has told me to meet. Then the next emergency services vehicle arrives: the bright red Scottish Labour battle bus emblazoned with a picture of his smiling face. Despite high hopes and a strong showing in the 2024 general election, the fortunes of Scottish Labour have fallen fast along with the national party and Sarwar’s dream of becoming first minister – only recently within touching distance – seems to be slipping away.…