Not that it matters. From everything I've read and heard, 95 senators know exactly how'll they will vote, so presenting any evidence or debate centers around perhaps 5 senators. It makes no difference if the vote is 50-50 or 55-45, Trump is acquitted, found not guilty.
To save time, energy, etc. just call the trial to order and then have the vote. 1-5 senators with open minds who might weigh their decision on the evidence isn't worth having this thing drag out. 50-50, 55-45 or something in-between. Same results.
It's high past time that we start electing Americans to congress and the presidency who put America first instead of their political party. For way too long we have been electing Republicans and Democrats who happen to be Americans instead of Americans who happen to be Republicans and Democrats.