Also in 1754, he went as a delegate to the Albany Congress.
There, he joined delegates from several other colonies to negotiate with Indians and discuss common plans for dealing with the French and Indian War (1754–1763).
Livingston became an active promoter of efforts to raise and fund troops for the war.
According to Cynthia A. Kiemer, he owned shares in six privateers, making him one of the colony's leading investors.

He served as a member of the provincial house of representatives from 1763 to 1769 and in 1768 served as Speaker.
In October 1765, he attended the Stamp Act Congress, which produced the first formal protest to the crown as a prelude to the American Revolution.
He joined New York City's Committee of Correspondence to continue communication with leaders in the other colonies, and New York City's Committee of Sixty.

When New York established the New York Provincial Congress in 1775, he was the President.
He was selected as one of the delegates to the Continental Congress.
His brother William, a prominent lawyer in New Jersey, was also a delegate to the Continental Congress from 1774 to June 1776.
In July 1775, Philip signed the Olive Branch Petition, a final attempt to achieve an understanding with the Crown.
Like many of the early patriots, he initially did not advocate a complete break from the mother country but eventually aligned himself with the opposition to the measures the British were imposing on the colonists.
When the British occupied New York City, Philip and his family fled to Kingston, New York where he maintained another residence.

After the Battle of Long Island, Washington and his officers met at Philip’s residence in Brooklyn Heights and decided to evacuate the island.
The British subsequently used Philip’s Duke Street home as a barracks, and his Brooklyn Heights residence as a Royal Navy hospital.

After the adoption of the new New York State Constitution, he was appointed to the New York State Senate southern district in 1777, while continuing to sit in the Continental Congress.
Livingston suffered from dropsy and his health deteriorated in 1778.
Also in 1754, he went as a delegate to the Albany Congress. There, he joined delegates from several other colonies to negotiate with Indians and discuss common plans for dealing with the French and Indian War (1754–1763). Livingston became an active promoter of efforts to raise and fund troops for the war. According to Cynthia A. Kiemer, he owned shares in six privateers, making him one of the colony's leading investors.
He served as a member of the provincial house of representatives from 1763 to 1769 and in 1768 served as Speaker. In October 1765, he attended the Stamp Act Congress, which produced the first formal protest to the crown as a prelude to the American Revolution. He joined New York City's Committee of Correspondence to continue communication with leaders in the other colonies, and New York City's Committee of Sixty.
When New York established the New York Provincial Congress in 1775, he was the President. He was selected as one of the delegates to the Continental Congress. His brother William, a prominent lawyer in New Jersey, was also a delegate to the Continental Congress from 1774 to June 1776. In July 1775, Philip signed the Olive Branch Petition, a final attempt to achieve an understanding with the Crown. Like many of the early patriots, he initially did not advocate a complete break from the mother country but eventually aligned himself with the opposition to the measures the British were imposing on the colonists. When the British occupied New York City, Philip and his family fled to Kingston, New York where he maintained another residence.
After the Battle of Long Island, Washington and his officers met at Philip’s residence in Brooklyn Heights and decided to evacuate the island. The British subsequently used Philip’s Duke Street home as a barracks, and his Brooklyn Heights residence as a Royal Navy hospital.
After the adoption of the new New York State Constitution, he was appointed to the New York State Senate southern district in 1777, while continuing to sit in the Continental Congress. Livingston suffered from dropsy and his health deteriorated in 1778.
Philip Livingston