Former GOP Vice-Presidential candidate Sarah Palin and stage mom Dina Lohan have been voted the worst potential mother-in-laws in the world in a new poll compiled by the readers of Parenting.com.

Neither of the famous moms have kids who have wed – but they still managed to top a new list of nightmare mama-in-laws.

Dina — mother of actress Lindsay Lohan — has been the constantly subject of public scorn due to her lax parenting style. Palin, on the other hand, has been targeted for her outspoken comments about the father of her teenage daughter Bristol’s infant son.

Sidebar: Elsewhere in the poll, Britney Spears was voted the “Least Desirable Facebook Friend.”