Douglas Ross could win the Scottish Tory leadership unopposed after a potential rival backed him.Right winger Michelle Ballantyne, who was tipped as a possible candidate, has supported Ross instead.She said: “I have confidence that Douglas is in tune with the membership and that he would work with activists to ensure that their voices are heard.”Ross quickly became the favourite for the job in the wake of MSP Jackson Carlaw’s shock resignation as leader.The Moray MP announced his leadership bid