Joel L. Shin, lawyer, international trade specialist and former campaign foreign policy adviser to President George W. Bush, died Jan. 21 at his apartment in Arlington. He was 45.

The cause was a heart attack, said his brother, Dr. Jordan Shin.

Mr. Shin served on the policy staff of the 2000 and 2004 presidential campaigns of George W. Bush, providing counsel to Bush and his senior staff on foreign and defense policies. He was also a member of Bush’s 2000 transition team and worked as a foreign policy adviser on former senator Robert J. Dole’s (R-Kan.) unsuccessful presidential campaign in 1996.

Mr. Shin was a principal at the Scowcroft Group, a District-based international investment advisory firm, for 11 years before joining Evenflow Macro, a consulting firm in Washington, as a partner in 2013.

Early in his career, he was an associate in the corporate department of Whitman Breed Abbott & Morgan, a New York law firm.

Joel Lee Shin was born in Birmingham, Ala. At Harvard University, he received a bachelor’s degree in 1990 as well as a law degree and a master’s degree in public policy, both in 1996. In 1992, he received a master’s degree in comparative philology from the University of Oxford in England, where he was a Rhodes Scholar.

He was a senior fellow at the Forum for International Policy.

Survivors include his parents, Dr. Myung Soo Shin and Betty Shin of New Haven, Conn.; and two brothers.

— Megan McDonough