Before the money spigot was turned off, the best they were able to rustle up was an MKULTRAed school shooter type who whiffed the job even when they blatantly hand-held him through the entire process by removing the usual Secret Service security team and replacing them with Homeland Security D-listers, and setting up the perfect shot for him with access to a rooftop with the security team being ordered to stay inside the building.
They followed that up with some NAFO schizo who got caught with his jank-ass sniper set-up well before he could even get shots off.
They came at the king and they missed. Twice. Mayorkas is probably sweating bullets right now. Plan A failed due to the grace of God. The Plan B was so half-assed it stood no chance of working. There is no Plan C waiting in the wings, because the people involved are too busy burning everything that shows their involvement before it gets found in an audit, and I bet they took worker resignation offer in a heartbeat. The dark money that funds these fuck-fuck games is either gone, or will be soon thanks to DOGE.
As for lone wolf psychos? Yeah, they will abound, but for every Luigi that carefully plans for months and strikes at the right moment, there are 1,000 now-unemployed Redditors who will get filled in with lead trying to storm a building with a cheap AR clone they bought the week before, that is if they don't ND into their leg or 41% themselves first. Oh, and any executive level politician is going to be hella harder to get at than a Healthcare CEO would be.