Super Tuesday voters put imprint on GOP race     With Ohio
looming large in the Super Tuesday lineup, textbook editor
Heather Froelich outside Columbus gave her vote to Romney,
saying: "He understands the economy." Columbus engineer Josh
Brooks considered the GOP front-runner but ultimately went with
Gingrich, explaining, "he's tough and he's got big ideas."  But
voters who turned out at a polling place in suburban Cincinnati
made clear that all the candidates still have some convincing to
do: Polling officials in Anderson Township said many people were
asking for issues-only ballots and skipping the presidential
voting altogether.  "I don't like the way the Republicans have
gone after each other, and the Democrats aren't any better,"
said one of them, accountant Chuck Horning.  With 419 delegates
at stake around the country, Tuesday's voting represents a
sizable slice of the 1,144 needed to nail down the GOP
nomination.   The GOP front-runner, trying to keep his focus on
President Barack Obama, used a speech