>> reporter: now at the hearing, rick dearborn and rob porter, who former white house aides were subpoenaed and expected to testify today but they have not shown up because the white house took steps to block their testimony as well. saying they have absolutely immune ilt as senior level presidential advisers and they are not -- they don't have to testify before congress and democrats are objecting to that as well and fighting a separate matter, don mcgahn's testimony because the white house cited he's immune from testifying as well. that will play out in the coming weeks and months in court. >> manu raju on capitol hill. thank you so much. joining me now is democratic congresswoman jackie speier of california on both the house intelligence and the house oversight committee. congresswoman, thank you so much for joining us as always. take a listen to the ranking republican on the house judiciary committee, republican congressman doug collins in his opening statement. >> it is become less read the mueller report for audio book. that is what we've become. we had mr. mueller here. had a long day of it.