Vice President Kamala Harris puts abortion rights at the center of President Biden's reelection campaign, attacking Republicans over an issue that Democrats see as a powerful vote winner against Donald Trump. "On the 51st anniversary of Roe, we speak of it in the past tense," Harris tells a crowd in Big Bend in Wisconsin, which is expected to be one of the most closely fought states in this year's election. "Every time reproductive freedom has been on the ballot, the people of America have voted for freedom," she says. IMAGES AND SOUNDBITES