President Jonathan has praised Senator David Mark's remarkable contributions to national development over many years.
In a congratulatory letter to Senator Mark on the occasion of his 67th birthday anniversary, President Jonathan extolled the Senate President's outstanding accomplishments in the service of his country.
"On the auspicious occasion of your 67thbirthday anniversary, I join your family, friends and well-wishers to thank Almighty God for your life which has been marked by outstanding accomplishments and enduring fulfillment.
"On behalf of my family, the Federal Government and people of Nigeria, I congratulate you and pray that Almighty God continues to strengthen, guide and prosper you," President Jonathan wrote to the Senate President.
He wished him a very happy birthday.