The Rasmussen Reports daily Presidential Tracking Poll for Saturday shows that 25% of the nation's voters Strongly Approve of the way that Barack Obama is performing his role as president. Forty-four percent (44%) Strongly Disapprove, giving Obama a Presidential Approval Index rating of -19 (see trends). Looking at Tuesday's upcoming primaries, the GOP race in Alabama is essentially a three-way tie, while Mitt Romney leads by eight in Mississippi. Nationally, Romney now leads Rick Santorum by 12 points. Regardless of who they want to win, 80% of Republican Primary Voters nationwide believe Romney will be the party's nominee. With the...