Carol C: "I respect candidates who show honesty and integrity and who put principles before political opportunities." Then who are you going to vote for in the presidential election? Surely not Obama.
As to Obama not visiting the wounded troops in Germany. He had every opportunity. The Pentagon released a statement, which has been widely reported on CNN and Fox News clarifying it's requirements were he to visit them. He, as a U. S. Senator would be most welcome. However he could not bring his two or three hundred adoring news reporters with him. He chose not to visit them (after all, what would be the point if there were no photographers present).