​Exclusive: Tory MPs warn PM she would lose vote on increasing benefits only in line with earnings rather than inflationLiz Truss is teetering on the edge of performing another big U-turn as Tory MPs warned she would lose a vote on delivering a real-terms cut to benefits while new research showed the move could push an extra 450,000 people into poverty.Despite desperate pleas for party unity from senior ministers after weeks of bitter infighting, the row over welfare threatened to overshadow the prime minister’s attempt to reassert her authority when the Commons returns from recess on Tuesday. Continue reading…