correspondent catherine herridge looks at the evidence. >> the president, again, would like to repeat that there was no collusion. >> while the news cycle remains fixated on ruption election meddling in recent days the nation's top intelligence officials have warned china is rising. at a national security conference. >> we have economic espionage investigations in every state. all 50 states. that tras back to china. the long-term threat is clearly china. that's the strategic competitor that we look to because the economic power of that country, the size. its ambitions. >> during a senate confirmation hearing. >> consistent with the rest of the intelligence community right now, i believe china is one of our biggest focus areas. certainly should be in terms of the threat now and the threat looking into the future. >> experts describe the chinese government strategy as ambitious and designed to dominate robotics and artificial intelligence by inquiring or stealing american secrets.