I find the hubris leaking to the public, "Stick with Mitch," in violation of the oath taken by the members of the US Senate before the proceedings began.
The reason that witnesses would turn the proceedings into a 2 to 5 month process rather than a 2 to 5 day process also in violation of the oath of the proceedings.
"I solemnly swear (or affirm, as the case may be) that in all things appertaining to the trial of the impeachment of [Donald John Trump], now pending, I will do impartial justice according to the Constitution and laws: so help me God."
If the US House Impeachment managers are stating there are witnesses the US Senate needs to hear from that is a matter of fact and not opinion.
Kindly remember, one of the most extremist elements in the Republican Party is the "Freedom Caucus." One of it's members became so disgusted with the current Executive Branch, including the president, he resigned from being a Republican.
June 11, 2019
By Haley Byrd and Kate Sullivan
Rep. Justin Amash on Monday stepped down (click here) from the conservative House Freedom Caucus less than a month after becoming the first Republican member of Congress to say President Donald Trump has committed impeachable offenses.
"I have the highest regard for them and they're my close friends," he told CNN. "I didn't want to be a further distraction for the group."
Amash's series of tweets in mid-May shook Capitol Hill, as the conservative Michigan lawmaker said special counsel Robert Mueller's report established "multiple examples" of Trump committing obstruction of justice. Amash was later insulted by Trump for his opinions -- the President said he's "been a loser for a long time" -- and faced blowback from top Republican officials. He's also now facing a primary challenger who is touting his support of Trump....
There has been compelling testimony by highly regarded members of the State Department in regard to lawlessness by the president and his associates. The truth is very evident and for the US Senate to play games at the cost of the US Constitution is illegal. The oath demands the US Senate to carry out it's constitutional responsibilities as the US House did.