11 rivals who could derail O'Malley's presidential plans
By John Fritze, The Baltimore Sun
The next presidential election is years off, but the jockeying and media speculation over 2016 is well under way. Maryland Gov. Martin O'Malley has told The Baltimore Sun he is considering whether to run for the Democratic nomination. But he is only one of several politicians who are leaving the door open about a run for the White House.