 Complete the following phrase:  He has also met democrat representatives, such as congressman Albio Sires and congresswoman Debbie Wasserman-Schultz, a number of Presidents of the Democratic National Committee, and with some advisors of the President Obama such as Rick Holtzapple who was Head of European Affairs of the White House, Mike Froman Obamas advisor for security affairs and Miriam Sapiro Responsible for commerce affairs at the Obama s Administration. In 2016, he attended the 