what you are describing is politics in a democratic setup. what's the alternative, theocracy? "rigged" is what likes of putin do.The only reason Joe got the presidential nomination in the first place (back in 2020) is because everyone dropped out before Super Tuesday to destroy Bernie Sanders chances and form a super moderate candidate. So now he has incumbent status and wouldn’t even allow much of a primary to be had. And the DNC and AIPAC do everything they can to fund the worst candidates they possibly can because they don’t want a real liberal in power. They want a fake neo liberal. The people standing by him (foolishly) are not going to be enough to get him elected in November.
google: "Electoral fraud, sometimes referred to as election manipulation, voter fraud, or vote rigging, involves illegal interference with the process of an election ..."
can you point to an illegal act?