When asked Thursday about a Politico report on Rep. Bill Shuster’s relationship with a top aviation lobbyist, Speaker John A. Boehner said he would not comment on the Pennsylvania Republican’s relationship with anyone, but said he is “comfortable” with ethics protocols to prevent conflicts of interest between members and lobbyists. “I’m also very comfortable that proper procedures were put in place to avoid a public or professional conflict of interest,” Boehner said.