But I wish he would get the terms he uses right.
But what he wants to do is call the Congress back to Washington. That act is the #convening of Congress.
What did Truman do?
He "convened" Congress.
This "convening" calls Congress into session. It is a power that the Constitution also gives to the president:
"he may, on extraordinary Occasions, convene both Houses, or either of them"
Let me hear your argument why this Coronavirus pandemic does not qualify as an "extraordinary occasion."