Leid Stories--As A Billionaire Republican-Turned Democrat Running for President in 2020, How Do Rate Mike Bloomberg's Campaign So Far?--01.28.20

Former national security adviser John Bolton's book, "The Room Where It Happened," isn't even out yet but it's causing shockwaves--and in a trial in which he's not a witness and probably won't be, even though he's willing to testify.

Republicans are all-out blocking Democrats from getting Bolton and other potential witnesses to testify about his firsthand knowledge of Trump's questionable "quid-pro-quo" dealings with Ukraine and other countries.

Bolton, who has said he will testify if subpoenaed, is seen as a lynchpin in the legal case against Trump. 

Chief Justice John Roberts has not yet ruled on whether witness testimony will be allowed in Trump's  impeachment trial. But Leid Stories asks: Should witnesses arbitrarily be barred from testifying in a trial--particularly a trial concerning crimes allegedly committed by the president of the United States?