55.9% in 2004
1,334,493 out of 2,386,678

Maryland

Associated Press reporting on a Maryland poll taken by Mason-Dixon Polling & Research Inc. of 400 likely Democratic primary voters: 53% would vote for Obama.

Jan. 13th, 2008

Rasmussen Reports on head to head polls of 500 likely voters shows:

Obama 48% vs McCain 42%
McCain 45% vs Hillary 43%

Obama 55% vs Romney 34%
Clinton 52% vs Romney 39%

Nov. 4th, 2007

Rasmussen Reports poll shows Hillary at 46% vs Rudy at 41%.