Rep. David Cicilline (D-RI) announced on Tuesday he will resign from Congress after 12 years of service in which he emerged as one of the Democratic Party’s leading political foes against former President Donald Trump.

In a statement, Cicilline said he would stay in office until June 1, 2023, when he will begin his tenure as president and CEO of the Rhode Island Foundation, an influential charity nexus in the state.

His departure from the House paves the way for a special election in Rhode Island’s 1st Congressional District, a heavily Democratic area in the eastern part of the state. After he leaves, Cicilline’s staff will continue serving constituents until a replacement is picked, his office said.

“Serving the people of Rhode Island’s First Congressional District has been the honor of my lifetime,” Cicilline said. “As President and CEO of one of the largest and oldest community foundations in the nation, I look forward to expanding on the work I have led for nearly thirty years in helping to improve the lives of all Rhode Islanders.”