Washington (CNN) Longtime GOP Rep. Peter King announced on Monday he will not seek another term in office, becoming the latest in a growing list of Republicans who are not seeking reelection in 2020.

King, a former chairman of the House Homeland Security Committee, is perhaps best known for his outspoken calls for strict anti-terrorism measures . He's represented part of Long Island in Congress since 1993 and said Monday he plans to finish out his current term.

King, 75, said he was retiring so he can live full-time in New York and spend more time with his family.

"This was not an easy decision. But there is a season for everything and Rosemary and I decided that, especially since we are both in good health, it is time to have the flexibility to spend more time with our children and grandchildren," he said, adding that his "daughter's recent move to North Carolina certainly accelerated my thinking."

A source familiar with King's thinking told CNN on Monday that King "was really holding on" until his daughter, Erin King Sweeney, a former councilwoman in Hempstead, New York, "could run for his seat and win it."

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