>> Cuz he wasn't doing a good job, very simply, he was not doing a good job.>> US President Donald Trump's anger at fired FBI Director James Comey had been building for months, but Reuters has learned the turning point came when Comey refused to preview his Senate testimony for Trump aides.
Reuters White House correspondent, Steve Holland.>> They had wanted a heads up, like what is Comey gonna say in his testimony? Comey told them he was going to testify but would not tell them what he planned to say. And so when word got to the White House about this it was like the final straw.
It went off in the West Wing like we were told a big stick of dynamite.>> Granting a preview of Congressional testimony to ones superiors is generally considered a courtesy. In his Senate testimony Comey said he wrested with whether to notify Congress about his investigation into former democratic presidential candidate Hilary Clinton's use of a private email server.
>> Look this is terrible, it makes me mildly nauseous to think that we might of had some impact on the election but honestly, it wouldn't change the decision.>> But Comey expressed no such of conflicts about publicly announcing an FBI probe into allegations that Trump campaign may have colluded with agents of the Russian government.
>> I think Trump has been stewing over this for a long time and would like to be cleared in this probe. The probe continues as we all know.>> Many questions remain about what caused the President to move so quickly. US Democratic Senator Diane Feinstein saying that she understood Comey had been seeking additional money and resources to expand and expedite the Russia probe in the days before he was fired.