Maine Medical Center has received its largest donation in the hospital’s history as part of a campaign to raise funds for the expansion of its facilities, workforce and innovation. The $25 million donation, given by summer Boothbay residents John and Leslie Malone, will go toward the hospital’s campaign to modernize and construct buildings for patient and employee use, MaineHealth announced Tuesday. Currently, the campaign has raised $135 million of its $150 million goal, the hospital said. “[The Malone’s] remarkable generosity will help Maine Medical Center meet its goals for this campaign and achieve our vision for improving healthcare in the great state of Maine,” said Bill Burke, co-chair of the campaign and a MaineHealth trustee. John Malone is the chair of Liberty Media and Liberty Global, which own numerous companies including the Atlanta Braves, AT&T, iHeartMedia, SiriusXM and Live Nation. As a result of the donation, Maine Medical Center will name its newest building, which is being built on Congress Street, the Malone Tower Building.