Dan Sullivan

Dan Sullivan Wednesday afternoon, June 18, 2014. Eric Engman/News-Miner

Alaska Republican Sen. Dan Sullivan tweeted his opposition Monday night to President Donald Trump’s decision to withdraw U.S. forces from northeast Syria and allow an invasion by neighboring Turkey.

Sullivan, who worked in the State Department under former President George W. Bush, listed several consequences from Trump’s decision, which has drawn strong bipartisan opposition in Congress.

“This decision will likely lead to increased Iranian influence; expand the power vacuum likely to be filled by Russian and Iranian proxies; and would raise the likelihood that ISIS prisoners will be released or escape from detention,” Sullivan tweeted shortly after 6:30 p.m. Alaska time.

“While I agree that our troops should not be in Syria indefinitely, such a precipitous withdraw and an abandonment of our Kurdish allies would make it harder in the future to attract partner forces to work with America,” he wrote.

Sullivan served as assistant secretary for economic, energy and business affairs in the Bush administration. The State Department bureau that he oversaw included, among several subject areas, “combating terrorist financing,” according to his State Department biography page.

Sullivan previously served in the National Security Council/National Economic Council Staff in the Bush White House. He is also a colonel in the Marine Corps Reserve.