U.S. Senator Mitch McConnell of Kentucky says Republicans in the newly configured Congress will work next year to repeal the health care overhaul passed by Democrats this year."If that is not possible or if it is possible and (President Obama) vetoes it, we're going to go after it piece by piece. There are numous parts of this controversial and unpopular law that have developed a high level of political toxicity," he said.McConnell is expected to win re-election as Senate Minority Leader. The GOP picked up at least six seats in the chamber in Tuesday's election, while Republicans regained control of the House.McConnell says he's had a good working relationship with Rep. John Boehner of Ohio, who's expected to become the next House Speaker.