IANAL, but some states specifically state you can refuse entry unless they present the warrant. Other states advise you to let them do whatever or risk facing charges (obstruction, etc).
In any event, get their names and badge numbers so you can sue. ALSO, the warrant should state what it is they’re looking for, which should in theory limit their search. For instance, if the warrant is to search your home looking for a stolen motorcycle (or whatever) they cannot look in your kitchen cabinets, bedside table, etc, because no motorcycle could possibly fit in those spaces. “Hey we found a pound of cocaine in a shoe box while looking for a motorcycle” would be thrown out of court. Doesn’t keep them from getting a new warrant and coming back, though.