You can read more about Musgrove on his wikipedia entry. Daily Kos and the Democratic Senate Campaign Committee are promoting Musgrove.
Musgrove ran a gay-baiting ad against Musgrove. Musgrove's response: he howled that indeed he was an anti-gay extremist.
Musgrove Is A Conservative
Musgrove Supported Additional Restrictions On Abortion: In 1990, Musgrove voted to require the licensing of abortion clinics by the State Board of Health. Also, Musgrove voted to require a 24-hour waiting period before a woman could obtain an abortion. In 1991, Musgrove again voted for a bill requiring the waiting period. (Clarion Ledger, 4/1/90; 4/7/91)
Musgrove Banned Public Funding Of Abortion: In April 2002, Musgrove also signed a bill that would ban spending public funds on abortions with a few exceptions (including when the mother's life is in danger, when the pregnancy is the result of rape or incest, or when a fetal malformation is incompatible with the baby being born alive). (Clarion Ledger, 4/18/02 HB 1480, Summary of Legislation 2002)
Musgrove Voted To Require Doctors To Register As Abortion Providers: In 1995, Musgrove voted to require physicians performing more than five abortions per month to have their offices licensed as abortion clinics. (Clarion Ledger, 3/9/95)
Musgrove Supported Ban On Gay Adoptions: In March 2000, Musgrove supported a ban on adoption by homosexuals or same-sex couples. The ban not only pertained to adoptions in Mississippi, but also ensured that Mississippi would not recognize adoptions by gay individuals or couples from other states if the parents moved to Mississippi. (Clarion Ledger, 3/23/00)
Musgrove Opposes Gay Marriage: Musgrove opposes gay marriage and believes that marriage is between one man and one woman. (Clarion Ledger, 10/3/08; Sun Herald, 10/22/03)
Being opposed to gays adopting children isn't conservative, the position comes from hostility to gay people. The "progressive" Daily Kos is pushing the Anti-gay Musgrove.