Dim literal = "<?xml version=""1.0""?><HamQTH version=""2.7"" xmlns=""https://www.hamqth.com""><session><session_id>09b0ae90050be03c452ad235a1f2915ad684393c</session_id></session></HamQTH>".Replace("xmlns=""https://www.hamqth.com""", String.Empty)
Dim parsedXml = XDocument.Parse(literal)
Dim sessionIdElement = parsedXml.Root.Element("session").Element("session_id")
Console.WriteLine(sessionIdElement)