[Jan_Sobieski]

The left may just create the casus belli to justify their destruction of conservatives...

[Steve Van Doorn]

casus belli had to look it up.
means "occasion for war" an act or event that provokes or is used to justify war. Which could be similar to the impeachments of Trump. Either the legal phone call or a false flag that did bring in a few patriots out of nearly two million that did trespass on the capital.