House Speaker Paul Ryan at a news conference following a Republican caucus meeting in the Capitol, March 24, 2017

President Donald Trump lashed out at his party's conservative wing on Sunday after the stinging defeat of a Republican health care plan he backed, arguing that Democrats were "smiling" at the result even as he hinted at co-opting the party's moderates.

Trump issued a tweet saying that Democrats were rejoicing over the GOP's failure to replace Obamacare. Although the bill was largely authored by House Speaker Paul Ryan, representatives from the right wing of the GOP including the House Freedom Caucus vigorously opposed the bill. On Sunday, Trump hit out at members of his party.