WASHINGTON -- Jen Psaki had been White House press secretary less than two weeks when a reporter asked whether Twitter's ban of Donald Trump had made President Joe Biden's life easier.“We don’t spend a lot of time talking about or thinking about President Trump here," she responded, then added for emphasis: “Former President Trump.”It was an early indication of what was to come with this press secretary. Her briefings were professional and typically congenial, but could turn pointed in a hurry.