McCarthy issued a tweet that does not explicitly reference the new "America First Caucus" — established by GOP Reps. Marjorie Taylor Greene (Ga.) and Paul Gosar (Ariz.) — but came hours after its policy platform began leaking to the media. "America is built on the idea that we are all created equal and success is earned through honest, hard work. It isn’t built on identity, race, or religion," McCarthy wrote. "The Republican Party is the party of Lincoln & the party of more opportunity for all Americans — not nativist dog whistles," he added.