Ryan just said that Trump is the nominee so they are stuck with him and his alter ego John Miller . We can assume that Trump will appoint John Miller to be the White House press manager who will speak behind a curtain.
Apparently the conservatives don't realize that Trump changes his mind frequently. How does Trump stand on the issues they consider important. Here is a small sample . In 1999, in an interview on NBC: "I am very pro-choice in every respect." In 2016, "I am very pro-life".
Trump wanted strict gun control . In his 2000 book, The America We Deserve: "I support the Ban On assault weapons and a longer waiting period to purchase a gun". in 2015, I do not support expanding background checks".
In a video blog in 2011 his view on Libya was : "We should go in, we should stop Gaddafi, which should be very easy and very quick....we should immediately go into Libya, knock this guy out very quickly, very surgically, very effective." In 2016, during the republican debate Trump said: "We would be so much better off if Gaddafi was in charge right now".
In 2011, to the Des Moines Register: "I am not in favor of gay marriage. They should not be able to marry". In January 2016, on Fox news, Trump told Chris Wallace: "I will be very strong on putting certain judges on the bench that will change the Gay marriage law."
Trump flip-flopped again, on March 2016, when he told People Magazine; "I would have liked to see the Gay marriage thing be a state thing, but the courts have ruled and there is nothing to be done."