-        try:
-            response = self._download_json(
-                post_url, None, 'Logging in as %s' % username,
-                data=urlencode_postdata(login_form),
-                headers=headers)
-        except ExtractorError as e:
-            if isinstance(e.cause, compat_HTTPError) and e.cause.code == 400:
-                response = self._parse_json(
-                    e.cause.read().decode('utf-8'), None)
-                fail(response['message'])
-            raise
-
-        if response.get('redirect'):
-            self._download_webpage(
-                response['redirect'], None, 'Downloading login redirect page',
-                headers=headers)
+        if re.search(r'(?i)<form[^>]+id="two-factor-submit"', redirect_page) is not None:
+            # TODO: Add mechanism to request an SMS or phone call
+            tfa_token = self._get_tfa_info('two-factor authentication token')
+            login_step(redirect_page, handle, 'Submitting TFA token', {
+                'authy_token': tfa_token,
+                'remember_2fa': 'true',
+            })