This year, it looks like the unions in Maryland, will be pulling out all the stops for the passage of gay marriage. See the WashingtonCompost (http://www.washingtonpost.com/local/dc-politics/labor-leaders-in-md-promoting-same-sex-marriage-bill/2012/01/04/gIQAA6HuaP_story.html)
Now, John Sweeney (AFL-CIO President) is a good friend of Cardinal Wuerl and was even honored by him. Each year, we have a Mass honoring labor (and he unions).
However, will the Church continue to support the AFL-CIO, esp. when they pumped in over $500,000 to support gay marriage in Maryland last year. Who knows how much they will spend this year.
Personally, I believe that Cardinal Wuerl and the other bishops will do nothing and continue their alliances with labor unions, as they continue their support of this issue, as well as, the worst president in US history.