CNN  —  Washington and Seoul may strike a cost-sharing agreement for US forces based in South Korea before the end of the year — even though the current agreement does not expire until the end of 2025 — as both sides feel a sense of urgency to get a new deal solidified before the possibility of a second Trump administration, according to two US officials and two former US officials familiar with the discussions. The negotiations over the Special Measures Agreement, known as the SMA, strained