On April 23, Joe Biden said:
Mark my words, I think he is gonna try to kick back the election somehow, come up with some rationale why it can’t be held.
The Trump campaign immediately responded:
Those are the incoherent, conspiracy theory ramblings of a lost candidate who is out of touch with reality.
Today, Trump tweeted:
Delay the Election until people can properly, securely and safely vote???
GOP Senator John Cornyn tried to claim that Trump was joking, but the markets did not think it was funny. Immediately afterwards stock markets, oil prices, and the dollar all slid downward.
The economy was the last area where voters trusted Trump more than Biden, but Trump has been slipping. Now that he has personally damaged the US economy, it should get even worse.
Biden did worse than troll Trump. He _calculated_ Trump, and forecast his actions like you would forecast the orbit of a planet, or the path of a storm, or the next move of a low-level chess robot.
Either that, or he put the idea in Trump’s head.