Mitt Romney's Son Signed Surrogacy Agreement Allowing Abortion Of "Abnormal Fetus"

TMZ has the scoop:

TMZ has learned Mitt Romney's son Tagg -- who had twins this year through a surrogate -- signed an agreement that gave the surrogate, as well as Tagg and his wife, the right to abort the fetuses in non-life threatening situations ... and Mitt Romney covered some of the expenses connected with the arrangement."

Tagg Romney's lawyer says it was a careless mistake.