What arguments based on the Fourth Amendment to the United States Constitution should Deft make in support of this motion?

Case discussion Police officers believed that Deft had assaulted Bart because Bart failed to pay Deft for cocaine Deft sold to Bart. The others obtained a valid warrant for the arrest of Deft on an assault charge. They went to Deft’s apartment and arrested Deft at the front door when he responded to their knock. […]