Ted Johnson Barack Obama plans to deliver a convention speech on Wednesday that will offer biting criticism of his successor Donald Trump and characterize Joe Biden and Kamala Harris as just the people who can lead “this country out of dark times.”Obama will be one of the marquee speakers on the convention’s third night, which will finish with the convention’s acceptance speech.“I have sat in the Oval Office with both of the men who are running for president,” Obama plans to say, according to