His lawyer and spokesman, Michael Cohen, said it is legal for a husband to rape his wife.
The Republican presidential contender says he "absolutely" will consider a third-party run if RNC isn't supportive.
Kasich touts gubernatorial, congressional experience.
The justices ruled that Walker's campaign and conservative groups didn't violate campaign finance laws.
Wisconsin Governor Scott Walker called the court's decision a "grave mistake."
Buck, of Colorado, is the latest conservative punished by GOP leaders for flouting the party line.
Conservatives are frustrated at being punished for voting their conscience after trying to work with Boehner.
At a forum on faith, 2016 candidates shied away from mentioning the racially-charged attacks on a church in Charleston.
The decision later this month could leave 9 million Americans without federal health care subsidies.
Fox News will host a forum for lesser presidential contenders, the network announced Wednesday.
The leading Republican contenders are willing to concede, under enhanced interrogation, that maybe it wasn’t the right call after all.
Republican politicians now often echo conspiracy theories once relegated to troglodyte pamphlets.
Graham, from South Carolina, is the ninth Republican to declare he is running for the White House.
Republicans have ignored the principles of the LGBT movement, confident they could win on other grounds.
The 69-year-old Republican is positioning himself as a Washington outsider and moderate.
Santorum is making another run for the Republican presidential nomination in 2016 after a failed attempt in 2012.