Why won’t trump appear and testify at his own senate hearing?

Because the verdict for this trial has already been decided.

So why would he want to show up and possibly say some Republicans to vote to convict?

Lets face it this is a show trial that will not get the Democrats the results they want.

They need 2/3 of all Senators to vote to convict that means 67 of 100 Senators need to vote with them.

Even with those like Romney that have a grudge against Trump voting with them they do not have the votes.

Considering Trumps propensity to constantly lie and exaggerate you really think any defense attorney in their right mind would want him on the stand to testify?

Not a chance.

this circus is meaningless...Ask your self why the Chief Justice won't show up for an "Impeachment" he is Constitutionally required to do so...

Trump is a private citizen.  The Senate does not have the authority to impeach a private citizen.  Done.

His lawyers would quit on the spot, it's impossible to prevent Trump from lying on the stand and they know it.

what else is he afraid of? .....The Truth of course- 

The TRUTH scares him to death, because he has no clue how to deal with the TRUTH. 

Hilary testified for 11 hours under oath. 

Trump refuses, because he knows he would either have to disavow  his 4 years of lies........or end up,  committing perjury, within MINUTES  of testimony,  much less 11 hours of it. 

we still waiting for that check biden said would go right out the door, they too busy going on a crusade against trump no one cares about.

Oh c'mon!

You expect Capt'n Bone Spurs to grow some balls overnight?

Getting confronted with the Big Lie. 

Clinton didn't show up at his impeachment trial in the Senate.  Hillary never had one, since the vapid c*nt was never president.

WTF are you babbling about, left-twit?