New user-designed campaigns that have been released this week include
United States – 1860 for President Infinity (Windows or Mac)
United States – 1864 for President Infinity (Windows or Mac)
United States – 1864 Alternate for President Infinity (Windows or Mac)
United States – 1868 for President Infinity (Windows or Mac)
United States – 2012 Special Edition for President Infinity (Windows or Mac)
Note that these are user-designed campaigns, not official ones.
Good gaming!