In an interview with WGBH, former FBI Director James Comey admitted that he is "a little bit numb" to President Trump's continued Twitter threats, but added that if a Democratic president acted the same way, Republicans' "heads would explode."

The big picture: The New York Times reported last week that Trump has privately discussed investigating and prosecuting Comey and Hillary Clinton, two of his most prominent political enemies. Comey has also been subpoenaed by House Republicans who want him to testify privately about his handling of the FBI investigation into Clinton’s emails. He told WGBH that he "would never just ignore a subpoena," but that he would prefer a public hearing to avoid selective leaking that creates some kind of "false narrative" about alleged FBI bias.

Go deeper: James Comey no longer considers himself a Republican