The Republican-led U.S. Senate prepares to weigh impeachment charges against President Donald Trump tomorrow amid deep political divisions and bipartisan acrimony. What guarantee is there that the process and outcome, which could mean impeachment for the president when the trial ends, will be fair?

The majority-Democrat House Judiciary Committee, last week voted out two articles of impeachment against Trump after hearings--abuse of power and obstruction of  Congress. Now, those charges must be tried and ultimately decided by the Senate.