NEW: There's a "real buzz" in LOTO and Southside around the idea of Ed Balls standing in Wakefield, says a senior Labour source...

Party figures think he'd bring a "big beast factor" to the by-election and a "big brain" to the Labour benches pic.twitter.com/ppLrg6yean

— Eleni Courea (@elenicourea) April 20, 2022