If she testifies, she will have to do falsely, meaning her risk escalates from a defamation suit and possible minor jail sentence to a major jail sentence for perjury.
Based on her waffling to date, that escalation of risk looks like something she will go to significant lengths to continue to avoid.
She pretty much can’t take the stand as any cross-examination will ruin the plot.
Her testimony will be in D.C., so there’s zero threat of indictment or conviction.
Has she started her road trip yet?
Hold the hearing. If she shows fine. If she doesn’t fine. Then hold the vote.