Pedigree. Here is a pedigree depicting X-linked recessive inheritance. These traits are often passed from a carrier mother to an affected son. X-linked traits are never passed from father to son.
Swing state definition, a state of the U.S. in which the Democratic and Republican candidates both have a good chance of winning and that is considered key to the outcome of a presidential election: the swing states of Ohio and Indiana. See more.
For the Republicans, Rand Paul is their strongest contender in the swing states in terms of being able to beat Clinton. But among swing state Republicans in general, Jeb Bush leads in Florida, while John Kasich leads in Ohio.