Toggling camera with one key,Toggle Camera with one key?

Hello guys , i'm new to Unity , I've been trying to toggle the camera with one key , it only toggle once , please help so i can understand what i'm missing in the script thanks a lot

 //General Variables
 public GameObject player;
 private Vector3 offSet = new Vector3(0, 5, -7);

 // View Cam Switch Variables (fCam"First Person View" tCam"Third Person View")
 public KeyCode key;
 public KeyCode key1;
 public Camera fCam, tCam;
 public bool camSwitch = true;
 // Start is called before the first frame update
 void Start()
 {
     
 }

 // Update is called once per frame
 void LateUpdate()
 {
     //General Cam Position
     transform.position = player.transform.position + offSet;
     //Cam Switch between FirstView and ThirdView
     if (Input.GetKeyDown(key))
     {
         camSwitch = !camSwitch;
         fCam.gameObject.SetActive(camSwitch);
         tCam.gameObject.SetActive(!camSwitch);
     }
     

     
 }