Does Rush Limbaugh deserve the award "Defender of the Constitution?

No. Limbaugh is a draft-dodging, yellow-bellied, drug-abusing, cowardly, closeted-, anti-american chickenhawk. If the cowardly believed in the USA, he would have enlisted and volunteered for duty in Vietnam. Instead, he played hide and go seek with the draftboard. He is a huge, fat wad of yellow pus.