CLEVELAND (AP) — President Barack Obama headed toward his second term Wednesday after again winning Ohio, where both he and Republican Mitt Romney had dedicated major time and resources to woo voters.

Democrats got a second victory in Ohio's hotly contested U.S. Senate campaign as incumbent Sherrod Brown defeated GOP challenger Josh Mandel, the state treasurer, despite an onslaught of attacks from conservative outside groups.

Two first-term congressional Republicans won re-election, and a heavily favored Democratic candidate in central Ohio captured a new U.S. House seat. In other races, Republicans kept control of the state Legislature and challengers unseated two Ohio Supreme Court justices.

There were long lines and heavy turnout in some areas but few Election Day problems reported in the swing state after months of seemingly nonstop campaign visits and ads, much of it for the race to the White House.