Donald Trump loves rallies. They get his juices going. Nothing, including Covid-19, will keep him from scheduling more of them. Joe Biden can take advantage of this.

He should send a truck to wherever Trump holds a political gathering. It show up the morning after, or maybe two mornings after. It will be staffed with health professionals and offer free Covid-19 testing for anyone that went to Trump’s rally.

Even if no one shows up for the test, he will be making an effective point. It is the kind of thing Trump would have done if the tables were turned.