Why do the parts in this script not turn?

for _, part in pairs(parts) do
		if part:IsA("Part") then
		print("we got dat vecta")
		part.CFrame = CFrame.new(Part.CFrame.p, mousep)
		wait(.001)
	end
end

No errors in output, all variables defined. Any suggestions?

You really should include the variables, because I have no idea what mousep is. But if you want to make the brick "turn", you should use CFrame.Angles().

Also is "Part" defined somewhere? Because if you really mean "part", it could cause a problem.