over new calls for gun control. correspondent doug mckelway tells us the nra is also dealing with some major internal conflict. >> hello. 911. >> hello. i can hear you. >> hello. >> it's a predictable pattern after this all too common form of carnage. politicians, mostly democrats, renewed their calls for more gun control. >> enough is enough. >> republicans mostly resist. the nra pushes back competent in the loyalty of its 5 million members and its clout in washington. this time may be different. three mass shootings in seven days, minced internal strife of the nra. according to news reports, the nra claims its ad agency tried to have the nra buy a multimillion dollar estate in a gated texas golf community for ceo wayne lapierre. the agency says the allegations are false. three members of the nra board resigned this week, citing reckless spending.