The wrecker said he will refuse to sign any bills until Congress
passes a bill to disenfranchise millions of American citizens. This
seems to imply that he will veto every bill — but it does not in fact
imply that.
The president can allow a law to pass by
waiting
ten days (not counting Sundays) without either signing or vetoing
the bill. He hasn't said whether he will do that. He might go for
the greatest possible sabotage by vetoing every bill passed — but he
also might not.
Of course, he is not at all honest and doesn't hesitate to contradict
whatever he said he would do, so maybe it makes no difference what he
said.