Those who strayed from the flock are proving the biggest stumbling blocks for the Congress as it makes an all-out attempt to win Meghalaya and retain Nagaland, which go to polls on February 26.
In Meghalaya, former Lok Sabha speaker Purno Sangma, a staunch Congressman till he formed the NCP with Sharad Pawar, is putting his entire political prestige on the line by taking on the Congress.