He can say that all he wants, but legally he doesn’t actually have the power to “cancel” elections. We’ve had elections during the Civil War, WWI, WWII, the Korean War, Vietnam, and both recent Middle East wars. Bombing Venezuela ain’t going to cut it even for Teflon Dumpie.
He also legally doesn't have the power to tariff, but even the courts haven't stopped that.
Yes, I hear you. And yet those are rights he’s stripped from a complicit Congress. Elections are controlled by the states, and many of them are likely to resist such an over-reach.