got delete working all the way to but not including form_valid

src/registrar/assets/sass/_theme/_base.scss

@@ -102,4 +102,22 @@ abbr[title] {
   // workaround for underlining abbr element
   border-bottom: none;
   text-decoration: none;
+}
+
+@include at-media(tablet) {
+  .float-right-tablet {
+      float: right;
+  }
+  .float-left-tablet {
+     float: left;
+  }
+}
+
+@include at-media(desktop) {
+  .float-right-desktop {
+     float: right;
+  }
+  .float-left-desktop {
+     float: left;
+  }
 }

src/registrar/forms/domain.py

@@ -179,7 +179,7 @@ class DomainDsdataForm(forms.Form):
     algorithm = forms.TypedChoiceField(
         required=True,
         label="Algorithm",
-        choices=[(-1, "--Select--")] + ALGORITHM_CHOICES,
+        choices=[(None, "--Select--")] + ALGORITHM_CHOICES,
         # Q: Is this even needed or is a required=True sufficient?
         # error_messages={
         #     "required": (
@@ -191,7 +191,7 @@ class DomainDsdataForm(forms.Form):
     # (TypedChoiceField)
     digest_type = forms.TypedChoiceField(
         label="Digest Type",
-        choices=[(-1, "--Select--")] + DIGEST_TYPE_CHOICES,
+        choices=[(None, "--Select--")] + DIGEST_TYPE_CHOICES,
         # Q: Is this even needed or is a required=True sufficient?
         error_messages={
             "required": (

src/registrar/templates/domain_dsdata.html

@@ -35,11 +35,22 @@
           {% endwith %}
         </div>
       </div>
-      {% with attr_required=True %}
-        {% input_with_errors form.digest %}
-      {% endwith %}
 
-      {% comment %} {% input_with_errors form.delete_checkbox %} {% endcomment %}
+      <div class="grid-row">
+        <div class="grid-col">
+          {% with attr_required=True %}
+            {% input_with_errors form.digest %}
+          {% endwith %}
+        </div>
+      </div>
+
+      <div class="grid-row margin-top-2">
+        <div class="grid-col">
+          {% with add_group_class="float-right-tablet" %}
+            {% input_with_errors form.delete %}
+          {% endwith %}
+        </div>
+      </div>
 
     </fieldset>
     {% endfor %}

src/registrar/views/domain.py

@@ -242,7 +242,7 @@ class DomainDsdataView(DomainPermissionView, FormMixin):
 
     template_name = "domain_dsdata.html"
     form_class = DomainDsdataFormset
-    
+    form = DomainDsdataForm
 
     def get_initial(self):
         """The initial value for the form (which is a formset here)."""
@@ -259,10 +259,6 @@ class DomainDsdataView(DomainPermissionView, FormMixin):
             if dnssecdata.dsData is not None:
                 # Add existing nameservers as initial data
                 initial_data.extend({"key_tag": record.keyTag, "algorithm": record.alg, "digest_type": record.digestType, "digest": record.digest} for record in dnssecdata.dsData)
-
-        # form = DomainDsdataForm()
-        # delete_checkbox = form.fields['delete']
-        # initial_data.extend({delete_checkbox: delete_checkbox})
         
         return initial_data
 
@@ -285,6 +281,23 @@ class DomainDsdataView(DomainPermissionView, FormMixin):
         if formset.is_valid():
             return self.form_valid(formset)
         else:
+            #
+            #
+            #
+            # testing delete
+            try:
+                for form in formset:
+                    if 'delete' in form.cleaned_data:
+                        logger.debug(f"delete: {form.cleaned_data['delete']}")
+                    else:
+                        logger.debug(f"delete key does not exist, harcoding false")
+            except KeyError:
+                logger.debug(f"KeyError: {KeyError}")
+            #
+            #
+            #
+            #
+            
             return self.form_invalid(formset)
 
     def form_valid(self, formset):
@@ -295,7 +308,25 @@ class DomainDsdataView(DomainPermissionView, FormMixin):
 
         for form in formset:
             try:
-                # TODO: build the right list of dicts to be passed
+                #
+                #
+                #
+                # untested
+                if 'delete' in form.cleaned_data:
+                    if form.cleaned_data['delete'] == False:
+                        pass
+                    else:
+                        # delete key exists and is true, delete this record
+                        logger.debug(f"delete: {form.cleaned_data['delete']}")
+                        
+                else:
+                    logger.debug(f"delete key does not exist, pass")
+                    pass
+                #
+                #
+                #
+                #
+                        
                 dsrecord = {
                     "keyTag": form.cleaned_data["key_tag"],
                     "alg": form.cleaned_data["algorithm"],