They know that not everyone will buy her testimony. They’re counting on enough MAGA people buying it for them to put it all behind them. Having her assassinated would just resurrect the scandal. It’s also not realistic to suppose that they could renege on a pardon deal without it getting out, especially if she dies. She has lawyers who’ll be only too happy to go on camera and talk about it, and merking them too would only make it worse.

The playbook should be to have her exculpate Trump in public testimony, declare the scandal over, then pardon her at the end of Trump’s term.